Mark A. Cappelli
Professor of Mechanical Engineering
Bio
Professor Cappelli received his B.Sc. degree in Physics (McGill, 1980), and M.A.Sc and Ph.D. degrees in Aerospace Sciences (Toronto, 1983, 1987). He joined Stanford University in 1987 and is currently a Professor in the Department of Mechanical Engineering and Co-Director of the Engineering Physics Program. He carries out research in applied plasma physics with applications to a broad range of fields, including space propulsion, aerodynamics, medicine, materials synthesis, and fusion.
Professional Education
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PhD, University of Toronto, Aerospace Science and Engineering (1987)
Patents
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Mark Cappelli, Nicolas Gascon, Ronald King. "United States Patent US9145216B2 Unified chemical electric propulsion system", Space Systems Loral, Sep 29, 2015
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Mark Cappelli. "United States Patent US20110011729A1 Method and apparatus for inductive amplification of ion beam energy", Flavio Poehlmann-Martins, Mark A. Cappelli, Gregory Rieker, Jan 20, 2011
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William A. Hargus, Jr. Nathan B. Meezan, Mark A. Cappelli. "United States Patent US6525480B1 Low power, linear geometry hall plasma source with an open electron drift", Stanford University, Feb 25, 2003
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Mark Cappelli. "United States Patent US5417953A Apparatus and method for synthesizing diamond in supercritical water", Stanford University, May 23, 1995
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Mark Cappelli, Michael Loh. "United States Patent US5358596A Method and apparatus for growing diamond films", Stanford University, Oct 25, 1994
2024-25 Courses
- Introduction to Engineering Analysis
ENGR 10 (Win) - Introductory Fluids Engineering
ME 70 (Spr) - Partially Ionized Plasmas and Gas Discharges
ME 363 (Aut) - Thermofluids, Energy, and Propulsion Research Seminar
ME 390A (Aut) -
Independent Studies (15)
- Directed Research and Writing in Aero/Astro
AA 190 (Aut, Win, Spr, Sum) - Engineering Problems
ME 391 (Aut, Win, Spr, Sum) - Engineering Problems and Experimental Investigation
ME 191 (Aut, Win, Spr, Sum) - Experimental Investigation of Engineering Problems
ME 392 (Aut, Win, Spr, Sum) - Honors Research
ME 191H (Aut, Win, Spr, Sum) - Independent Research and Study
PHYSICS 190 (Aut, Win, Spr, Sum) - Independent Study in Aero/Astro
AA 199 (Aut, Win, Spr, Sum) - Master's Directed Research
ME 393 (Aut, Win, Spr, Sum) - Master's Directed Research: Writing the Report
ME 393W (Aut, Win, Spr, Sum) - Ph.D. Research Rotation
ME 398 (Aut, Win, Spr, Sum) - Ph.D. Teaching Experience
ME 491 (Aut, Win, Spr) - Practical Training
ME 199A (Win, Spr) - Practical Training
ME 299A (Aut, Win, Spr, Sum) - Practical Training
ME 299B (Aut, Win, Spr, Sum) - Senior Thesis Research
PHYSICS 205 (Aut, Win, Spr, Sum)
- Directed Research and Writing in Aero/Astro
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Prior Year Courses
2023-24 Courses
- Introduction to Engineering Analysis
ENGR 10 (Sum) - Introductory Fluids Engineering
ME 70 (Spr) - Physical Gas Dynamics
ME 362A (Aut)
2022-23 Courses
- Introduction to Engineering Analysis
ENGR 10 (Sum) - Introductory Fluids Engineering
ME 70 (Win) - Physical Gas Dynamics
ME 362A (Aut)
2021-22 Courses
- Advanced Topics in Plasma Science and Engineering
ME 463 (Spr) - Introduction to Engineering Analysis
ENGR 10 (Aut, Sum) - Introductory Fluids Engineering
ME 70 (Win) - Thermofluids, Energy, and Propulsion Research Seminar
ME 390A (Spr)
- Introduction to Engineering Analysis
Stanford Advisees
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Doctoral Dissertation Reader (AC)
Andy Castillo, Andrew Denig, Amitesh Jayaraman, Derek Kuldinow, Beicheng Lou, Adnan Mansour, Nick Montes, Ashwyn Sam, Daniel Troyetsky, Josh Vandervort -
Postdoctoral Faculty Sponsor
Hossein Mehrpourbernety, Benjamin Wang -
Doctoral Dissertation Advisor (AC)
Adura Jibodu, Ryan Przybocki, Taemin Yong -
Master's Program Advisor
Hao Li, Matthew Mirek, Adam Tuckey -
Doctoral Dissertation Co-Advisor (AC)
Claudia Parisuana, Subhechchha Paul, Edna Toro Garza -
Doctoral (Program)
Rob Buechler, Tristan Gilbert, Francesco Marchioni, Harsha Rajesh, Devin Seyler, Sreya Vangara, Katie Wootten
All Publications
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Reconfigurable plasma-dielectric hybrid photonic crystal as a platform for electromagnetic wave manipulation and computing
PHYSICS OF PLASMAS
2021; 28 (4)
View details for DOI 10.1063/5.0043336
View details for Web of Science ID 000639389300001
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Interpenetration and kinetic effects in converging, high-energy plasma jets
HIGH ENERGY DENSITY PHYSICS
2020; 37
View details for DOI 10.1016/j.hedp.2020.100861
View details for Web of Science ID 000596566500008
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A tunable double negative device consisting of a plasma array and a negative-permeability metamaterial
PHYSICS OF PLASMAS
2020; 27 (2)
View details for DOI 10.1063/1.5112077
View details for Web of Science ID 000518030700001
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Schlieren diagnostic for cinematic visualization of dense plasma jets at Alfvenic timescales
EXPERIMENTS IN FLUIDS
2020; 61 (1)
View details for DOI 10.1007/s00348-019-2848-5
View details for Web of Science ID 000501312800005
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Ion plume investigation of a Hall effect thruster operating with Xe/N-2 and Xe/air mixtures
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2019; 52 (46)
View details for DOI 10.1088/1361-6463/ab36c5
View details for Web of Science ID 000484237900003
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Effects of flow collisionality on ELM replication in plasma guns
FUSION ENGINEERING AND DESIGN
2019; 144: 97–106
View details for DOI 10.1016/j.fusengdes.2019.04.088
View details for Web of Science ID 000488300500014
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Broadband cw-terahertz spectroscopy for characterizing reactive plasmas
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2019; 52 (19)
View details for DOI 10.1088/1361-6463/ab085e
View details for Web of Science ID 000460449400002
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Electron number density measurements from the frequency shift of a plasma defect state in a one-dimensional photonic crystal
EUROPEAN PHYSICAL JOURNAL D
2019; 73 (5)
View details for DOI 10.1140/epjd/e2019-90617-y
View details for Web of Science ID 000467644000005
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Dynamic formation of stable current-driven plasma jets.
Scientific reports
2019; 9 (1): 2588
Abstract
Instabilities play a prominent role in determining the inherent structure and properties of magnetized plasma jets spanning both laboratory and astrophysical settings. The manner in which prominent unstable modes dynamically evolve remains key to understanding plasma behavior and control. In astrophysical phenomena, self-similar jets are observed to propagate over vast distances while avoiding breakup caused by unstable mode growth. However, the production of stable dense plasma jets in the laboratory has been limited by the onset of unstable modes that restrict jet lifetime, collimation, and scalability. In this work, we visualize the formation of stable laboratory-generated, dense, super-magnetosonic plasma jets in real time, and we identify an underlying mechanism that contributes to this behavior. The current-driven plasma jets generated in our experiments form a flowing Z-pinch, which is generally unstable to the m=1 kink instability. Our results indicate that a stable dense plasma jet can be maintained for timescales over which a steady pinch current can be sustained, even at levels which would otherwise lead to rapid unstable mode growth and resultant pinch disassembly.
View details for PubMedID 30796311
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Millimeter wave control using a plasma filled photonic crystal resonator
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2019; 52 (5)
View details for DOI 10.1088/1361-6463/aaee3d
View details for Web of Science ID 000451045200002
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Laser-produced gaseous plasmonic resonators
PHYSICS OF PLASMAS
2018; 25 (11)
View details for DOI 10.1063/1.5054022
View details for Web of Science ID 000451734600046
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Predictive modeling of plasmas for gaseous plasmonics
PLASMA SOURCES SCIENCE & TECHNOLOGY
2018; 27 (7)
View details for DOI 10.1088/1361-6595/aacd70
View details for Web of Science ID 000437840800001
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Computational and experimental investigation of plasma deflagration jets and detonation shocks in coaxial plasma accelerators
PLASMA SOURCES SCIENCE & TECHNOLOGY
2018; 27 (2)
View details for DOI 10.1088/1361-6595/aaabec
View details for Web of Science ID 000425980600002
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Plasma flow reactor for steady state monitoring of physical and chemical processes at high temperatures
REVIEW OF SCIENTIFIC INSTRUMENTS
2017; 88 (9): 093506
Abstract
We present the development of a steady state plasma flow reactor to investigate gas phase physical and chemical processes that occur at high temperature (1000 < T < 5000 K) and atmospheric pressure. The reactor consists of a glass tube that is attached to an inductively coupled argon plasma generator via an adaptor (ring flow injector). We have modeled the system using computational fluid dynamics simulations that are bounded by measured temperatures. In situ line-of-sight optical emission and absorption spectroscopy have been used to determine the structures and concentrations of molecules formed during rapid cooling of reactants after they pass through the plasma. Emission spectroscopy also enables us to determine the temperatures at which these dynamic processes occur. A sample collection probe inserted from the open end of the reactor is used to collect condensed materials and analyze them ex situ using electron microscopy. The preliminary results of two separate investigations involving the condensation of metal oxides and chemical kinetics of high-temperature gas reactions are discussed.
View details for PubMedID 28964176
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Low-Mass RF Power Inverter for CubeSat Applications Using 3-D Printed Inductors
IEEE JOURNAL OF EMERGING AND SELECTED TOPICS IN POWER ELECTRONICS
2017; 5 (2): 880-890
View details for DOI 10.1109/JESTPE.2016.2644644
View details for Web of Science ID 000400896000026
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A plasma deflagration accelerator as a platform for laboratory astrophysics
HIGH ENERGY DENSITY PHYSICS
2017; 23: 73–80
View details for DOI 10.1016/j.hedp.2017.03.004
View details for Web of Science ID 000404314500009
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Experimental validation of tunable features in laser-induced plasma resonators
SPIE-INT SOC OPTICAL ENGINEERING. 2017
View details for DOI 10.1117/12.2276971
View details for Web of Science ID 000416302400002
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Tunable microwave pulse generation using discharge plasmas
APPLIED PHYSICS LETTERS
2016; 109 (12)
View details for DOI 10.1063/1.4963268
View details for Web of Science ID 000384558700072
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Damage Morphologies in Targets Exposed to a New Plasma Deflagration Accelerator for ELM Simulation
IEEE TRANSACTIONS ON PLASMA SCIENCE
2016; 44 (9): 1534-1540
View details for DOI 10.1109/TPS.2016.2565508
View details for Web of Science ID 000384231500011
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Waveguiding and bending modes in a plasma photonic crystal bandgap device
AIP ADVANCES
2016; 6 (6)
View details for DOI 10.1063/1.4954668
View details for Web of Science ID 000379041400015
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A plasma photonic crystal bandgap device
APPLIED PHYSICS LETTERS
2016; 108 (16)
View details for DOI 10.1063/1.4946805
View details for Web of Science ID 000375053000001
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Radial magnetic compression in the expelled jet of a plasma deflagration accelerator
APPLIED PHYSICS LETTERS
2016; 108 (9)
View details for DOI 10.1063/1.4943370
View details for Web of Science ID 000375329200065
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PLASMA PHOTONIC CRYSTALS WITH TUNABLE BANDGAP AND CONFIGURABLE TRANSMISSION MODES
IEEE. 2016
View details for Web of Science ID 000391073600412
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Low mass RF power inverter for cubesat plasma thruster using 3D printed inductors
IEEE. 2016
View details for Web of Science ID 000389467400093
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A TUNABLE MICROSTRIP PHOTONIC CRYSTAL BANDGAP DEVICE WITH PLASMA ELEMENTS
IEEE. 2016
View details for Web of Science ID 000391073600264
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ON THE USE OF PLASMA METASURFACES AS TUNABLE THZ WAVE REFLECTORS
IEEE. 2016
View details for Web of Science ID 000391073600374
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GENERATING MICROWAVE PULSES WITH PLASMA
IEEE. 2016
View details for Web of Science ID 000391073600409
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Time-resolved laser-induced fluorescence measurement of ion and neutral dynamics in a Hall thruster during ionization oscillations
JOURNAL OF APPLIED PHYSICS
2015; 118 (23)
View details for DOI 10.1063/1.4937272
View details for Web of Science ID 000367376600013
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A zero-equation turbulence model for two-dimensional hybrid Hall thruster simulations
PHYSICS OF PLASMAS
2015; 22 (11)
View details for DOI 10.1063/1.4935891
View details for Web of Science ID 000366054900095
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A tunable microwave plasma photonic crystal filter
APPLIED PHYSICS LETTERS
2015; 107 (17)
View details for DOI 10.1063/1.4934886
View details for Web of Science ID 000364234200007
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Evidence of Branching Phenomena in Current-Driven Ionization Waves.
Physical review letters
2015; 115 (17): 175001
Abstract
This Letter reports the first fully consistent experimental observations of current-driven ionization waves conforming to the magnetohydrodynamic Rankine-Hugoniot model for hydromagnetic shocks. Detailed measurements of the thermodynamic and electrodynamic plasma state variables across the ionization region confirm the existence of two types of waves, corresponding to the upper and lower solution branches of the Hugoniot curve. These waves are generated by pulsed currents in a coaxial gas-fed plasma accelerator. The coupling between the state variables of this complex, transient, three-dimensional system shows a remarkable quantitative agreement of less than 8% deviation from the quasisteady, one-dimensional theoretical model.
View details for DOI 10.1103/PhysRevLett.115.175001
View details for PubMedID 26551118
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Evidence of Branching Phenomena in Current-Driven Ionization Waves
PHYSICAL REVIEW LETTERS
2015; 115 (17)
Abstract
This Letter reports the first fully consistent experimental observations of current-driven ionization waves conforming to the magnetohydrodynamic Rankine-Hugoniot model for hydromagnetic shocks. Detailed measurements of the thermodynamic and electrodynamic plasma state variables across the ionization region confirm the existence of two types of waves, corresponding to the upper and lower solution branches of the Hugoniot curve. These waves are generated by pulsed currents in a coaxial gas-fed plasma accelerator. The coupling between the state variables of this complex, transient, three-dimensional system shows a remarkable quantitative agreement of less than 8% deviation from the quasisteady, one-dimensional theoretical model.
View details for DOI 10.1103/PhysRevLett.115.175001
View details for Web of Science ID 000363016600002
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Excited state population dynamics of a xenon ac discharge
PLASMA SOURCES SCIENCE & TECHNOLOGY
2015; 24 (5)
View details for DOI 10.1088/0963-0252/24/5/055013
View details for Web of Science ID 000364336600022
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Numerical studies of nitric oxide formation in nanosecond-pulsed discharge-stabilized flames of premixed methane/air.
Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
2015; 373 (2048)
Abstract
A simulation is developed to investigate the kinetics of nitric oxide (NO) formation in premixed methane/air combustion stabilized by nanosecond-pulsed discharges. The simulation consists of two connected parts. The first part calculates the kinetics within the discharge while considering both plasma/combustion reactions and species diffusion, advection and thermal conduction to the surrounding flow. The second part calculates the kinetics of the overall flow after mixing the discharge flow with the surrounding flow to account for the effect that the discharge has on the overall kinetics. The simulation reveals that the discharge produces a significant amount of atomic oxygen (O) as a result of the high discharge temperature and dissociative quenching of excited state nitrogen by molecular oxygen. This atomic oxygen subsequently produces hydroxyl (OH) radicals. The fractions of these O and OH then undergo Zel'dovich reactions and are found to contribute to as much as 73% of the total NO that is produced. The post-discharge simulation shows that the NO survives within the flow once produced.
View details for DOI 10.1098/rsta.2014.0331
View details for PubMedID 26170428
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Self-organization in planar magnetron microdischarge plasmas
APPLIED PHYSICS LETTERS
2015; 106 (25)
View details for DOI 10.1063/1.4922898
View details for Web of Science ID 000357036600045
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Successive laser ablation ignition of premixed methane/air mixtures
OPTICS EXPRESS
2015; 23 (11): A419-A427
Abstract
Laser ablation has been used to study successive ignition in premixed methane/air mixtures under conditions in which the flow speed leads to flame blow-out. A range of laser pulse frequencies is experimentally mimicked by varying the time interval between two closely spaced laser pulses. Emission intensities from the laser ablation kernels are measured to qualitatively estimate laser energy coupling, and flame CH* chemiluminescence is recorded in a time-resolved manner to capture the flame evolution and propagation. A comparison of the measurements is made between the two successive breakdown ignition events. It is found that the formation of the subsequent ablation kernel is almost independent of the previous one, however, for the successive breakdowns, the first breakdown and its ensuing combustion created temporal regions of no energy coupling as they heat the gas and lower the density. Flame imaging shows that the second ablation event successfully produces another flame kernel and is capable of holding the flame-base even at pulse intervals where the second laser pulse cannot form a breakdown. This study demonstrates that successive ablation ignition can allow for the use of higher laser frequencies and enhanced flame stabilization than successive breakdown ignition.
View details for DOI 10.1364/OE.23.00A419
View details for Web of Science ID 000356902400002
View details for PubMedID 26072866
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A fast rise-rate, adjustable-mass-bit gas puff valve for energetic pulsed plasma experiments.
Review of scientific instruments
2015; 86 (6): 063503-?
Abstract
A fast rise-rate, variable mass-bit gas puff valve based on the diamagnetic repulsion principle was designed, built, and experimentally characterized. The ability to hold the pressure rise-rate nearly constant while varying the total overall mass bit was achieved via a movable mechanical restrictor that is accessible while the valve is assembled and pressurized. The rise-rates and mass-bits were measured via piezoelectric pressure transducers for plenum pressures between 10 and 40 psig and restrictor positions of 0.02-1.33 cm from the bottom of the linear restrictor travel. The mass-bits were found to vary linearly with the restrictor position at a given plenum pressure, while rise-rates varied linearly with plenum pressure but exhibited low variation over the range of possible restrictor positions. The ability to change the operating regime of a pulsed coaxial plasma deflagration accelerator by means of altering the valve parameters is demonstrated.
View details for DOI 10.1063/1.4922522
View details for PubMedID 26133835
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A fast rise-rate, adjustable-mass-bit gas puff valve for energetic pulsed plasma experiments.
Review of scientific instruments
2015; 86 (6): 063503-?
Abstract
A fast rise-rate, variable mass-bit gas puff valve based on the diamagnetic repulsion principle was designed, built, and experimentally characterized. The ability to hold the pressure rise-rate nearly constant while varying the total overall mass bit was achieved via a movable mechanical restrictor that is accessible while the valve is assembled and pressurized. The rise-rates and mass-bits were measured via piezoelectric pressure transducers for plenum pressures between 10 and 40 psig and restrictor positions of 0.02-1.33 cm from the bottom of the linear restrictor travel. The mass-bits were found to vary linearly with the restrictor position at a given plenum pressure, while rise-rates varied linearly with plenum pressure but exhibited low variation over the range of possible restrictor positions. The ability to change the operating regime of a pulsed coaxial plasma deflagration accelerator by means of altering the valve parameters is demonstrated.
View details for DOI 10.1063/1.4922522
View details for PubMedID 26133835
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A Reduced Set of Air Plasma Reactions for Nanosecond Pulsed Plasmas
IEEE TRANSACTIONS ON PLASMA SCIENCE
2015; 43 (4): 995-1001
View details for DOI 10.1109/TPS.2015.2409300
View details for Web of Science ID 000353113700010
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Nanosecond-Pulsed Discharge Plasma Splitting of Carbon Dioxide
IEEE TRANSACTIONS ON PLASMA SCIENCE
2015; 43 (4): 1002-1007
View details for DOI 10.1109/TPS.2015.2408344
View details for Web of Science ID 000353113700011
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Ion dynamics in an E x B Hall plasma accelerator
APPLIED PHYSICS LETTERS
2015; 106 (4)
View details for DOI 10.1063/1.4907283
View details for Web of Science ID 000348996200080
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Ion Velocimetry Measurements and Particle-In-Cell Simulation of a Cylindrical Cusped Plasma Accelerator
IEEE TRANSACTIONS ON PLASMA SCIENCE
2015; 43 (1): 54-63
View details for DOI 10.1109/TPS.2014.2321743
View details for Web of Science ID 000347786300007
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Implementation of an Entropy Closure Model for 2-D Hybrid Hall Thruster Simulations
IEEE TRANSACTIONS ON PLASMA SCIENCE
2015; 43 (1): 5-11
View details for DOI 10.1109/TPS.2014.2304852
View details for Web of Science ID 000347786300002
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A 2-D Hybrid Hall Thruster Simulation That Resolves the E x B Electron Drift Direction
IEEE TRANSACTIONS ON PLASMA SCIENCE
2015; 43 (1): 86-94
View details for DOI 10.1109/TPS.2014.2356650
View details for Web of Science ID 000347786300010
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High-Velocity Neutral Plasma Jet Formed by Dense Plasma Deflagration
IEEE TRANSACTIONS ON PLASMA SCIENCE
2014; 42 (10): 2500-2501
View details for DOI 10.1109/TPS.2014.2332467
View details for Web of Science ID 000344548300088
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Successive laser-induced breakdowns in atmospheric pressure air and premixed ethane-air mixtures
COMBUSTION AND FLAME
2014; 161 (7): 1744-1751
View details for DOI 10.1016/j.combustflame.2013.12.029
View details for Web of Science ID 000337200700007
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Time-synchronized continuous wave laser-induced fluorescence axial velocity measurements in a diverging cusped field thruster
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2014; 47 (11)
View details for DOI 10.1088/0022-3727/47/11/115204
View details for Web of Science ID 000332761800008
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Experiments and simulations of an atmospheric pressure lossy dielectric barrier Townsend discharge
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2014; 47 (8)
View details for DOI 10.1088/0022-3727/47/8/085202
View details for Web of Science ID 000331902900012
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Plasma Actuator Control of a Lifted Ethane Turbulent Jet Diffusion Flame
IEEE TRANSACTIONS ON PLASMA SCIENCE
2013; 41 (12): 3293-3298
View details for DOI 10.1109/TPS.2013.2277722
View details for Web of Science ID 000328701100015
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Induced Flow and Optical Emission Generated by a Pulsed 13.56 MHz-5 kHz Plasma Actuator
IEEE TRANSACTIONS ON PLASMA SCIENCE
2013; 41 (12): 3275-3278
View details for DOI 10.1109/TPS.2013.2279879
View details for Web of Science ID 000328701100012
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Dielectric Barrier Discharge-Induced Vortex Generation With Discharge-Actuated Boundary Layer Bleed
IEEE TRANSACTIONS ON PLASMA SCIENCE
2013; 41 (12): 3245-3253
View details for DOI 10.1109/TPS.2013.2278027
View details for Web of Science ID 000328701100009
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Studies on the stability limit extension of premixed and jet diffusion flames of methane, ethane, and propane using nanosecond repetitive pulsed discharge plasmas
COMBUSTION AND FLAME
2013; 160 (11): 2396-2403
View details for DOI 10.1016/j.combustflame.2013.05.023
View details for Web of Science ID 000324006400010
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A study of flow induced by laser induced breakdown-enhanced dielectric barrier discharges in air
APPLIED PHYSICS LETTERS
2013; 103 (16)
View details for DOI 10.1063/1.4825373
View details for Web of Science ID 000326148700101
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Surface discharge plasma actuator driven by a pulsed 13.56 MHz-5 kHz voltage waveform
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2013; 46 (40)
View details for DOI 10.1088/0022-3727/46/40/405201
View details for Web of Science ID 000324861100014
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A Thomson-type mass and energy spectrometer for characterizing ion energy distributions in a coaxial plasma gun operating in a gas-puff mode
PHYSICS OF PLASMAS
2013; 20 (7)
View details for DOI 10.1063/1.4816028
View details for Web of Science ID 000322535400063
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Simulations of nanosecond-pulsed dielectric barrier discharges in atmospheric pressure air
JOURNAL OF APPLIED PHYSICS
2013; 113 (11)
View details for DOI 10.1063/1.4795269
View details for Web of Science ID 000316545200011
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Surface discharge plasma actuator driven by a pulsed 13.56 MHz–5 kHz voltage waveform
Journal of Physics D: Applied Physics
2013; 46 (40): 405201
View details for DOI 10.1088/0022-3727/46/40/405201
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Dielectric Barrier Discharge-Induced Vortex Generation With Discharge-Actuated Boundary Layer Bleed
Plasma Science, IEEE Transactions on
2013; 41 (12): 3245 - 3253
View details for DOI 10.1109/TPS.2013.2278027
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Plasma Actuator Control of a Lifted Ethane Turbulent Jet Diffusion Flame
Plasma Science, IEEE Transactions on
2013; 41 (12): 3293 - 3298
View details for DOI 10.1109/TPS.2013.2277722
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The manipulation of an unstarting supersonic flow by plasma actuator
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2012; 45 (48)
View details for DOI 10.1088/0022-3727/45/48/485202
View details for Web of Science ID 000311148300009
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Optically pumped cesium plasma neutralization of space charge in photon-enhanced thermionic energy converters
APPLIED PHYSICS LETTERS
2012; 101 (21)
View details for DOI 10.1063/1.4767349
View details for Web of Science ID 000311477600075
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Time-synchronized continuous wave laser-induced fluorescence on an oscillatory xenon discharge
REVIEW OF SCIENTIFIC INSTRUMENTS
2012; 83 (11)
Abstract
A novel approach to time-synchronizing laser-induced fluorescence measurements to an oscillating current in a 60 Hz xenon discharge lamp using a continuous wave laser is presented. A sample-hold circuit is implemented to separate out signals at different phases along a current cycle, and is followed by a lock-in amplifier to pull out the resulting time-synchronized fluorescence trace from the large background signal. The time evolution of lower state population is derived from the changes in intensity of the fluorescence excitation line shape resulting from laser-induced fluorescence measurements of the 6s(')[1/2](1)(0)-6p(')[3/2](2) xenon atomic transition at λ = 834.68 nm. Results show that the lower state population oscillates at twice the frequency of the discharge current, 120 Hz.
View details for DOI 10.1063/1.4766958
View details for Web of Science ID 000312034400018
View details for PubMedID 23206061
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Plasma-assisted stabilization of laminar premixed methane/air flames around the lean flammability limit
COMBUSTION AND FLAME
2012; 159 (10): 3128-3137
View details for DOI 10.1016/j.combustflame.2012.03.023
View details for Web of Science ID 000308619100013
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Dielectric barrier discharge induced boundary layer suction
APPLIED PHYSICS LETTERS
2012; 100 (26)
View details for DOI 10.1063/1.4731288
View details for Web of Science ID 000305831500108
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Ion velocity and plasma potential measurements of a cylindrical cusped field thruster
JOURNAL OF APPLIED PHYSICS
2012; 111 (9)
View details for DOI 10.1063/1.4707953
View details for Web of Science ID 000304109900016
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Nanoparticle production in arc generated fireballs of granular silicon powder
AIP ADVANCES
2012; 2 (1)
View details for DOI 10.1063/1.3681283
View details for Web of Science ID 000302225400044
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A Simulation of the Effects of Varying Repetition Rate and Pulse Width of Nanosecond Discharges on Premixed Lean Methane-Air Combustion
Journal of Combustion
2012; 2012: 11
View details for DOI 10.1155/2012/137653
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Experimental Study and Plasma Control of an Unstarting Supersonic Flow
6th AIAA Flow Control Conference
2012
View details for DOI 10.2514/6.2012-2809
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Experimental Study of Plasma Control of an Unstarting Supersonic Flow
6th AIAA Flow Control Conference
2012
View details for DOI 10.2514/6.2012-2809
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Electric Field Measurements in Gases Using Cavity Enhanced Polarimetry
50th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
2012
View details for DOI 10.2514/6.2012-988
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Separation Control Using Dielectric Barrier Discharge-Induced Suction and Vortex Generation
6TH AIAA FLOW CONTROL CONFERENCE
2012
View details for DOI 10.2514/6.2012-2947
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The Structure of Nanosecond Repetitively Pulsed Spark Discharges in Air
IEEE TRANSACTIONS ON PLASMA SCIENCE
2011; 39 (11): 2258-2259
View details for DOI 10.1109/TPS.2011.2160656
View details for Web of Science ID 000299683400102
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The influence of boundary layers on supersonic inlet flow unstart induced by mass injection
EXPERIMENTS IN FLUIDS
2011; 51 (3): 679-691
View details for DOI 10.1007/s00348-011-1077-3
View details for Web of Science ID 000294347800009
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Laser-induced fluorescence velocity measurements of a diverging cusped-field thruster
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2011; 44 (29)
View details for DOI 10.1088/0022-3727/44/29/295203
View details for Web of Science ID 000292383000011
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Visualizing supersonic inlet duct unstart using planar laser Rayleigh scattering
EXPERIMENTS IN FLUIDS
2011; 50 (6): 1651-1657
View details for DOI 10.1007/s00348-010-1028-4
View details for Web of Science ID 000291042300014
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On the quenching of excited electronic states of molecular nitrogen in nanosecond pulsed discharges in atmospheric pressure air
APPLIED PHYSICS LETTERS
2011; 98 (1)
View details for DOI 10.1063/1.3535986
View details for Web of Science ID 000286009800014
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Laser-Induced Fluorescence Velocity Measurements of a Diverging Cusped Field Thruster
Journal of Physics D: Applied Physics
2011; 44 (29)
View details for DOI 10.1088/0022-3727/44/29/295203
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The Influence of Boundary Layers on Supersonic Inlet Unstart
17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
2011
View details for DOI 10.2514/6.2011-2349
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Unstart of a Supersonic Model Inlet/Isolator Flow Induced by Mass Injection
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
2011
View details for DOI 10.2514/6.2011-68
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Quenching of Excited Electronic States of Molecular Nitrogen in Nanosecond Pulsed Discharges in Atmospheric Pressure Air
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
2011
View details for DOI 10.2514/6.2011-1150
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Experimental and Computational Investigation of Mass Injection Induced Unstart
29th AIAA Applied Aerodynamics Conference
2011
View details for DOI 10.2514/6.2011-3192
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Plasma Control of an Unstarting Supersonic Flow
17th AIAA International Space Planes and Hypersonic Systems and Technologies Conference
2011
View details for DOI 10.2514/6.2011-2360
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Plasma Control of a Turbulent Boundary Layer in an Unstarting Supersonic Flow
49th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
2011
View details for DOI 10.2514/6.2011-1143
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Plasma assisted flame ignition of supersonic flows over a flat wall
COMBUSTION AND FLAME
2010; 157 (12): 2298-2305
View details for DOI 10.1016/j.combustflame.2010.07.006
View details for Web of Science ID 000283967300009
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Current distribution measurements inside an electromagnetic plasma gun operated in a gas-puff mode
PHYSICS OF PLASMAS
2010; 17 (12)
Abstract
Measurements are presented of the time-dependent current distribution inside a coaxial electromagnetic plasma gun. The measurements are carried out using an array of six axially distributed dual-Rogowski coils in a balanced circuit configuration. The radial current distributions indicate that operation in the gas-puff mode, i.e., the mode in which the electrode voltage is applied before injection of the gas, results in a stationary ionization front consistent with the presence of a plasma deflagration. The effects of varying the bank capacitance, transmission line inductance, and applied electrode voltage were studied over the range from 14 to 112 μF, 50 to 200 nH, and 1 to 3 kV, respectively.
View details for DOI 10.1063/1.3526603
View details for Web of Science ID 000285770500069
View details for PubMedCentralID PMC3026009
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Plasma assisted cavity flame ignition in supersonic flows
COMBUSTION AND FLAME
2010; 157 (9): 1783-1794
View details for DOI 10.1016/j.combustflame.2010.03.009
View details for Web of Science ID 000280267700015
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On the role of fluctuations, cathode placement, and collisions on the transport of electrons in the near-field of Hall thrusters
PHYSICS OF PLASMAS
2010; 17 (9)
View details for DOI 10.1063/1.3479827
View details for Web of Science ID 000282439300032
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Dielectric barrier discharge control of a turbulent boundary layer in a supersonic flow
APPLIED PHYSICS LETTERS
2010; 97 (4)
View details for DOI 10.1063/1.3473820
View details for Web of Science ID 000281059200020
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Single particle simulations of electron transport in the near-field of Hall thrusters
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2010; 43 (4)
View details for DOI 10.1088/0022-3727/43/4/045203
View details for Web of Science ID 000273551300009
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The role of in situ reforming in plasma enhanced ultra lean premixed methane/air flames
COMBUSTION AND FLAME
2010; 157 (2): 374-383
View details for DOI 10.1016/j.combustflame.2009.06.016
View details for Web of Science ID 000273702400018
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Ion Velocity Distribution in a Low-Power Cylindrical Hall Thruster
46TH AIAA/ASME/SAE/ASEE JOINT PROPULSION CONFERENCE & EXHIBIT
2010
View details for DOI 10.2514/6.2010-7103
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Plasma-Assisted Flame Holding in Subsonic and Supersonic Flows
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
2010
View details for DOI 10.2514/6.2010-263
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Plasma Assisted Flame Holding in Subsonic and Supersonic Flows
48th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
2010
View details for DOI 10.2514/6.2010-263
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Structure of laboratory ball lightning
PHYSICAL REVIEW E
2009; 80 (6)
Abstract
Trajectories of self-sustained laboratory ball lightning, generated by arc discharges with silicon, are investigated for understanding the possibility of buoyant flight. Extremely low apparent densities are found, nearly approaching that of standard air. The freely buoyant balls are observed to survive for about 0.1 s, with significantly buoyant balls surviving for several seconds. These ball lightning objects are found to have a density and size that can easily allow them to be carried by a gentle breeze of a few meters per second. The results are interpreted by a model that is an extension of that first proposed by Abrahamson and Dinniss [J. Abrahamson and J. Dinniss, Nature (London) 403, 519 (2000)]. The buoyant behavior of ball lightning seen in our experiments is believed to arise as a result of the formation of a nanoparticle oxide network growing from a molten silicon core.
View details for DOI 10.1103/PhysRevE.80.067401
View details for Web of Science ID 000273228000094
View details for PubMedID 20365306
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Energetic neutrals in the cathode sheath of argon direct-current discharges
JOURNAL OF APPLIED PHYSICS
2009; 106 (2)
View details for DOI 10.1063/1.3160329
View details for Web of Science ID 000268613000020
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Time and space-correlated plasma potential measurements in the near field of a coaxial Hall plasma discharge
PHYSICS OF PLASMAS
2009; 16 (7)
View details for DOI 10.1063/1.3155097
View details for Web of Science ID 000268615200058
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Electrostatic probe disruption of drift waves in magnetized microdischarges
APPLIED PHYSICS LETTERS
2009; 94 (21)
View details for DOI 10.1063/1.3132587
View details for Web of Science ID 000266500400009
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The Hall effect and rocket flight
PHYSICS TODAY
2009; 62 (4): 76-77
View details for Web of Science ID 000264991800022
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Preliminary Characterization of a Diverging Cusped Field (DCF) Thruster
31st International Electric Propulsion Conference
2009
View details for DOI 10.13140/2.1.2644.5123
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Jet Flame Ignition in a Supersonic Crossflow Using a Pulsed Nonequilibrium Plasma Discharge
IEEE TRANSACTIONS ON PLASMA SCIENCE
2008; 36 (6): 2918-2923
View details for DOI 10.1109/TPS.2008.2005986
View details for Web of Science ID 000262061900007
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A Study of Plasma-Stabilized Diffusion Flames at Elevated Ambient Temperatures
IEEE TRANSACTIONS ON PLASMA SCIENCE
2008; 36 (6): 2898-2904
View details for DOI 10.1109/TPS.2008.2004345
View details for Web of Science ID 000262061900004
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Shear-Based Model for Electron Transport in Hybrid Hall Thruster Simulations
IEEE TRANSACTIONS ON PLASMA SCIENCE
2008; 36 (5): 2058-2068
View details for DOI 10.1109/TPS.2008.2004364
View details for Web of Science ID 000261363100011
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An analysis of millimetre-wave interferometry on Hall thruster plumes by finite difference time domain simulations
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2008; 41 (18)
View details for DOI 10.1088/0022-3727/41/18/185205
View details for Web of Science ID 000258985500021
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A simple isentropic model of electron transport in Hall thrusters
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2008; 41 (16)
View details for DOI 10.1088/0022-3727/41/16/162003
View details for Web of Science ID 000258221100003
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Magnetized microdischarge plasma generation at low pressure
20th Symposium on Plasma Science for Materials (SPSM-20)
ELSEVIER SCIENCE SA. 2008: 6668–72
View details for DOI 10.1016/j.tsf.2007.11.040
View details for Web of Science ID 000257977900024
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High speed images of drift waves and turbulence in magnetized microplasmas
IEEE TRANSACTIONS ON PLASMA SCIENCE
2008; 36 (4): 1228-1229
View details for DOI 10.1109/TPS.2003.927347
View details for Web of Science ID 000258618200184
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Optimal discharge placement in plasma-assisted combustion of a methane jet in cross flow
COMBUSTION AND FLAME
2008; 153 (4): 603-615
View details for DOI 10.1016/j.combustflame.2007.11.015
View details for Web of Science ID 000256319800009
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Cross-talk in multiple dielectric barrier discharge actuators
APPLIED PHYSICS LETTERS
2008; 92 (7)
View details for DOI 10.1063/1.2885085
View details for Web of Science ID 000253540500021
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Formation and role of cool flames in plasma-assisted premixed combustion
APPLIED PHYSICS LETTERS
2008; 92 (5)
View details for DOI 10.1063/1.2841894
View details for Web of Science ID 000253016500020
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Growth of resistive instabilities in ExB plasma discharge simulations
PHYSICS OF PLASMAS
2008; 15 (1)
View details for DOI 10.1063/1.2823033
View details for Web of Science ID 000252821500004
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Magnetized microdischarge plasmas in low pressure argon and helium
2nd International Symposium on Atomic Technology
IOP PUBLISHING LTD. 2008
View details for DOI 10.1088/1742-6596/106/1/012020
View details for Web of Science ID 000259999900020
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On the role of oxygen in dielectric barrier discharge actuation of aerodynamic flows
APPLIED PHYSICS LETTERS
2007; 91 (18)
View details for DOI 10.1063/1.2803755
View details for Web of Science ID 000250643600025
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Simulating plasma-induced hall thruster wall erosion with a two-dimensional hybrid model
IEEE TRANSACTIONS ON PLASMA SCIENCE
2007; 35 (5): 1379-1387
View details for DOI 10.1109/TPS.2007.905943
View details for Web of Science ID 000250993200023
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Experimental characterization of a micro-hall thruster
JOURNAL OF PROPULSION AND POWER
2007; 23 (5): 1068-1074
View details for DOI 10.2514/1.27140
View details for Web of Science ID 000249671200021
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On the production of energetic neutrals in the cathode sheath of direct-current discharges
APPLIED PHYSICS LETTERS
2007; 90 (10)
View details for DOI 10.1063/1.2711416
View details for Web of Science ID 000244791700022
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Investigation of NO production and flame structure in plasma enhanced premixed combustion
PROCEEDINGS OF THE COMBUSTION INSTITUTE
2007; 31: 3319-3326
View details for DOI 10.1016/j.proci.2006.07.107
View details for Web of Science ID 000252858200189
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Shear-Based Model for Electron Transport in 2D Hybrid Hall Thruster Simulations
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2007
View details for DOI 10.2514/6.2007-5208
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The Deflagration - Detonation Transition in Gas-Fed Pulsed Plasma Accelerators
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2007
View details for DOI 10.2514/6.2007-5263
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Bluff body flow separation control using surface dielectric barrier discharges
45th AIAA Aerospace Sciences Meeting and Exhibit
2007
View details for DOI 10.2514/6.2007-939
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Numerical investigation of electron behavior in the near-field of Hall thrusters
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2007
View details for DOI 10.2514/6.2007-5240
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Numerical Simulation of High Frequency Wave Coupling within a Hall Thruster
43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2007
View details for DOI 10.2514/6.2007-5266
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Plasma-discharge stabilization of jet diffusion flames
IEEE TRANSACTIONS ON PLASMA SCIENCE
2006; 34 (6): 2545-2551
View details for DOI 10.1109/TPS.2006.886084
View details for Web of Science ID 000242922800011
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Millimetre wave plasma interferometry in the near field of a Hall plasma accelerator
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2006; 39 (21): 4582-4588
View details for DOI 10.1088/0022-3727/39/21/013
View details for Web of Science ID 000242476000015
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Nonintrusive characterization of the azimuthal drift current in a coaxial E x B discharge plasma
PHYSICAL REVIEW E
2006; 74 (5)
Abstract
A diagnostic is developed for the nonintrusive study of the azimuthal drift current in the coaxial ExB discharge of a Hall plasma accelerator. The technique of fast current interruption is used to generate a signal on several loop antenna that circle the outer wall of the discharge channel. The signal on the antenna is recorded, and used to determine the spatial distribution of the azimuthal drift at the moment of current interruption. The results of the experiment are compared to estimates derived via prior intrusive measurements, and the intrusive estimates are found to predict the spatial characteristics of the azimuthal drift, but underestimate its total magnitude. The self-induced magnetic field is then calculated and added to the applied magnetic field. The peak total magnetic field is seen to shift 2-5mm towards the anode due to self-induction, and suffer a reduction in magnitude of 10%-15%. The peak in the total magnetic field is then found to more closely coincide with the peak of the measured electric field than the peak of the vacuum magnetic field. It is concluded that the self-induced magnetic field could be important to anomalous electron mobility in the Hall-effect thruster, and simulation efforts should try to include its impact.
View details for DOI 10.1103/PhysRevE.74.056402
View details for PubMedID 17279996
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Aerodynamic modification of flow over bluff objects by plasma actuation
EXPERIMENTS IN FLUIDS
2006; 41 (3): 479-486
View details for DOI 10.1007/s00348-006-0175-0
View details for Web of Science ID 000240058000011
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Low-power magnetized microdischarge ion source
APPLIED PHYSICS LETTERS
2006; 89 (6)
View details for DOI 10.1063/1.2335612
View details for Web of Science ID 000239690800028
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Comparison of hybrid Hall thruster model to experimental measurements
PHYSICS OF PLASMAS
2006; 13 (8)
View details for DOI 10.1063/1.2336186
View details for Web of Science ID 000240237700052
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Ion energy distribution and gas heating in the cathode fall of a direct-current microdischarge
PHYSICAL REVIEW E
2006; 73 (4)
Abstract
This paper reports on measurements of the ion energy distribution (IED) at the cathode of an argon dc microdischarge using energy-resolved molecular beam mass spectrometry. The measurements are conducted at a fixed pressure-electrode separation product (pd) of 1 cm Torr with a maximum discharge pressure of 20 Torr. The measured IED is compared to the theory of Davis and Vanderslice [W. D. Davis and T. A. Vanderslice, Phys. Rev. 131, 219 (1963)]. A higher pressure in a case of almost constant normalized current densities by pressure (Jp(-2) = 0.080+/-0.006 mA/cm(-2) Torr(-2)) yields a lower ratio of the ion mean free path to the sheath thickness. The results in almost constant Jp(-2) case then indicate that a scaling law of Jp(-2) is no longer applicable for IED of microdischarge. Expected background gaseous temperatures from IEDs with the collisional Child law have reasonable increasing with increased current density (J) in both cases of almost constant Jp(-2) and a constant pressure of 10 Torr. Supported by temperature measurement by laser absorption spectroscopy, it is demonstrated that the expanded theory might be applicable also to microdischarges (Ar approximately 20 Torr) with temperature adjusting.
View details for DOI 10.1103/PhysRevE.73.046401
View details for Web of Science ID 000237146800070
View details for PubMedID 16711933
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Wall erosion in 2D Hall thruster simulations
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4656
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Introduction of Physical Transport Mechanisms into 2D Hybrid Hall Thruster Simulations
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4325
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The Magnetic Interference Hall Accelerator
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4993
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Operation of a Coaxial High Energy (CHENG) Thruster
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-5157
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Fluctuation-induced transport in the Hall plasma accelerator
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-5168
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An axial-azimuthal hybrid simulation of coaxial Hall thrusters
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4329
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Coaxial Hall Thruster with Diamond Inner Channel Wall
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4995
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Flame stabilization enhancement and NOx production using ultra short repetitively pulsed plasma discharges
44th AIAA Aerospace Sciences Meeting and Exhibit
2006
View details for DOI 10.2514/6.2006-560
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Investigation of field structure and electron behavior in the near-field of Hall thrusters
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4835
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Further development of a micro Hall thruster
42nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2006
View details for DOI 10.2514/6.2006-4495
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Experimental investigation of high frequency plasma oscillations within Hall thrusters
42ND AIAA/ASME/SAE/ASEE JOINT PROPULSION CONFERENCE & EXHIBIT
2006
View details for DOI 10.2514/6.2006-5171
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Measurements in Stationary Reference Bi Discharge Cell for Diagnostics of a Bismuth Hall Thruster
42ND AIAA/ASME/SAE/ASEE JOINT PROPULSION CONFERENCE & EXHIBIT
2006
View details for DOI 10.2514/6.2006-4638
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Flame stabilization using a plasma discharge in a lifted jet flame
43rd AIAA Aerospace Sciences Meeting and Exhibit
2005
View details for DOI 10.2514/6.2005-931
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Design and tuning of a vacuum microplasma spray system: Particle entrainment
Symposium on Surface Engineering in Materials Science III held at the 2005 TMS Annual Meeting
MINERALS, METALS & MATERIALS SOC. 2005: 267–282
View details for Web of Science ID 000228243600027
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The VHITAL Program to Demonstrate the Performance and Lifetime of a Bismuth-Fueled Very High Isp Hall Thruster
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2005
View details for DOI 10.2514/6.2005-4564
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Development of Optical Diagnostics for Bismuth Plasma Propulsion Devices
IEEE International Conference on Plasma Science
2005: 165
View details for DOI 10.1109/PLASMA.2005.359169
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Electron Cross-Field Transport in 2D Hybrid Hall Thruster Simulation
IEEE International Conference on Plasma Science
2005
View details for DOI 10.1109/PLASMA.2005.359186
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Spectroscopic Measurements of Bismuth For Optical Diagnostics
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2005
View details for DOI 10.2514/6.2005-4230
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Microwave interferometry (90 GHz) for Hall thruster plume density characterization
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2005
View details for DOI 10.2514/6.2005-4399
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Ion Energy Distributions in the Cathode Sheath of an Argon DC Microdischarge
IEEE International Conference on Plasma Science
2005
View details for DOI 10.1109/PLASMA.2005.359416
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Gradient transport processes in E× B plasmas
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2005
View details for DOI 10.2514/6.2005-4063
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Ion velocity measurements in a linear Hall thruster
41st AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit
2005
View details for DOI 10.2514/6.2005-4401
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Arcjet plasma neutralization of Hall thrusters, Part 1: Hybrid thruster mission analysis
JOURNAL OF SPACECRAFT AND ROCKETS
2004; 41 (6): 1016-1022
View details for Web of Science ID 000225846700014
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Arcjet neutralization of Hall thrusters, Part 2: Experimental demonstration
JOURNAL OF SPACECRAFT AND ROCKETS
2004; 41 (6): 1023-1030
View details for Web of Science ID 000225846700015
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Non-intrusive characterization of the hall thruster azimuthal drift current
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2004
View details for DOI 10.2514/6.2004-3776
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Arcjet Plasma Neutralization of Hall Thrusters, Part 2: Experimental Demonstration
Journal of Spacecraft and Rockets
2004; 41: 1023-1030
View details for DOI 10.2514/1.3280
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Very high Isp thruster with anode layer (VHITAL): an overview
Space 2004 Conference and Exhibit
2004
View details for DOI 10.2514/6.2004-5910
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A Comparison of 2-D Hybrid Hall Thruster Model to Experimental Measurements
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2004
View details for DOI 10.2514/6.2004-3951
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Optical Diagnostics Options for Bismuth Hall Thrusters
40TH AIAA/ASME/SAE/ASEE JOINT PROPULSION CONFERENCE AND EXHIBIT
2004
View details for DOI 10.2514/6.2004-3946
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Images of Ground State Xenon Density in the Near Field of Low Power Hall Thruster
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2004
View details for DOI 10.2514/6.2004-4120
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Mechanism for anomalously high voltages in high-pressure dc microdischarge mixtures of He, Ne, and Xe
JOURNAL OF APPLIED PHYSICS
2003; 94 (3): 2145-2147
View details for DOI 10.1063/1.1590406
View details for Web of Science ID 000184400400130
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Optical measurements of plasma velocity and temperature in a low-rate, low-power LPPS system
SURFACE & COATINGS TECHNOLOGY
2003; 162 (1): 79-92
View details for Web of Science ID 000178898100011
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Plasma Oscillations and Wall Material Effects in a Hall Thruster
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-4857
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Further Studies of a Linear Hall thruster
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-5156
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Spatial and Temporal Mapping of Azimuthal Drift Current in a Hall Thruster
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-4854
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A Study of the Azimuthal Electron Drift in an E x B Discharge Using a Non-invasive Antenna Array
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-4854
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Interactions within a cluster of low power Hall thrusters
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-5006
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Operating regimes of a linear SPT with low secondary electron-induced wall conductivity
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-5156
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Vacuum ultraviolet absorption measurements of ground state xenon in the near field of a low power Hall thruster
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-5007
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Overview of electric propulsion research in US academia
39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2003
View details for DOI 10.2514/6.2003-4442
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Plasma instabilities in the ionization regime of a Hall thruster
39TH AIAA/ASME/SAE/ASEE JOINT PROPULSION CONFERENCE AND EXHIBIT
2003
View details for DOI 10.2514/6.2003-4857
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Kinetic and surface mechanisms to growth of hexagonal boron nitride
Conference on Surface Engineering 2002 - Synthesis, Characterization and Applications held at the 2002 MRS Fall Meeting
MATERIALS RESEARCH SOCIETY. 2003: 313–318
View details for Web of Science ID 000183595500050
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Laser-induced-fluorescence characteristics of a helium arcjet flow
APPLIED PHYSICS B-LASERS AND OPTICS
2002; 75 (6-7): 717-722
View details for DOI 10.1007/s00340-002-1050-1
View details for Web of Science ID 000180587100017
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Kinetic study of wall collisions in a coaxial Hall discharge
PHYSICAL REVIEW E
2002; 66 (3)
Abstract
Coaxial Hall discharges (also known as Hall thrusters, stationary plasma thrusters, and closed-drift accelerators) are cross-field plasma sources under development for space propulsion applications. The importance of the electron-wall interaction to the Hall discharge operation is studied the through analysis of experimental data and simulation of the electron energy distribution function (EEDF) inside the discharge channel. Experimental time-average plasma property data from a laboratory Hall discharge are used to calculate the electron conductivity and to estimate the rate of wall-loss collisions. The electron Boltzmann equation is then solved in the local field limit, using the experimental results as inputs. The equation takes into account ionization and wall collisions, including secondary electrons produced at the wall. Local electron balances are used to calculate the sheath potential at the insulator walls. Results show an EEDF depleted at high energy due to electron loss to the walls. The calculated EEDFs agree well with experimental electron temperature data when the experimentally determined effective collision frequency is used for electron momentum transport. The electron wall-loss and wall-return frequencies are extremely low compared to those predicted by a Maxwellian of equal average energy. The very low frequency of wall collisions suggests that secondary electrons do not contribute to cross-field transport. This conclusion holds despite significant experimental uncertainty.
View details for DOI 10.1103/PhysRevE.66.036401
View details for Web of Science ID 000178624400015
View details for PubMedID 12366261
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Ion beam dynamics in a linear Hall discharge
IEEE TRANSACTIONS ON PLASMA SCIENCE
2002; 30 (1): 138-139
View details for Web of Science ID 000175845900068
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Interior and exterior laser-induced fluorescence and plasma measurements within a Hall thruster
JOURNAL OF PROPULSION AND POWER
2002; 18 (1): 159-168
View details for Web of Science ID 000173577200019
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Transport physics in Hall plasma thrusters
40th AIAA Aerospace Sciences Meeting & Exhibit
2002
View details for DOI 10.2514/6.2002-485
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A characterization of plasma fluctuations within a hall discharge
IEEE TRANSACTIONS ON PLASMA SCIENCE
2001; 29 (4): 582-591
View details for Web of Science ID 000170571500003
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Laser-induced fluorescence measurements of velocity within a Hall discharge
APPLIED PHYSICS B-LASERS AND OPTICS
2001; 72 (8): 961-969
View details for Web of Science ID 000169039800011
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Mass spectrometric and Langmuir probe measurements in inductively coupled plasmas in Ar, CHF3/As and CHF3/Ar/O-2 mixtures
PLASMA SOURCES SCIENCE & TECHNOLOGY
2001; 10 (2): 191-204
View details for Web of Science ID 000169258200009
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Parametric study of the vacuum ultraviolet emission and electrical characteristics of a He-Xe microdischarge
JOURNAL OF APPLIED PHYSICS
2001; 89 (9): 4719-4726
View details for Web of Science ID 000168130100006
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Stability of a magnetized Hall plasma discharge
JOURNAL OF APPLIED PHYSICS
2001; 89 (6): 3099-3107
View details for Web of Science ID 000167248100005
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Anomalous electron mobility in a coaxial Hall discharge plasma
PHYSICAL REVIEW E
2001; 63 (2)
Abstract
A comprehensive analysis of measurements supporting the presence of anomalous cross-field electron mobility in Hall plasma accelerators is presented. Nonintrusive laser-induced fluorescence measurements of neutral xenon and ionized xenon velocities, and various electrostatic probe diagnostic measurements are used to locally determine the effective electron Hall parameter inside the accelerator channel. These values are then compared to the classical (collision-driven) Hall parameters expected for a quiescent magnetized plasma. The results indicate that in the vicinity of the anode, where there are fewer plasma instabilities, the electron-transport mechanism is likely elastic collisions with the background neutral xenon. However, we find that in the vicinity of the discharge channel exit, where the magnetic field is the strongest and where there are intense fluctuations in the plasma properties, the inferred Hall parameter departs from the classical value, and is close to the Bohm value of (omega(ce)tau)(eff) approximately 16. These results are used to support a simple model for the Hall parameter that is based on the scalar addition of the electron collision frequencies (elastic collision induced plus fluctuation induced), as proposed by Boeuf and Garrigues [J. Appl. Phys. 84, 3541 (1998)]. The results also draw attention to the possible role of fluctuations in enhancing electron transport in regions where the electrons are highly magnetized.
View details for Web of Science ID 000167022500062
View details for PubMedID 11308588
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Performance of a linear Hall discharge with an open electron drift
37th Joint Propulsion Conference and Exhibit
2001
View details for DOI 10.2514/6.2001-3503
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High density plasma neutralization of a Hall thruster
37th Joint Propulsion Conference and Exhibit
2001
View details for DOI 10.2514/6.2001-3352
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Electron energy distribution function in a Hall discharge plasma
37th Joint Propulsion Conference and Exhibit
2001
View details for DOI 10.2514/6.2001-3326
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Numerical study of instabilities in a magnetized Hall discharge
37th Joint Propulsion Conference and Exhibit
2001
View details for DOI 10.2514/6.2001-3324
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Development of a colloid micro-thruster for flight demonstration on the Emerald nanosatellite
37th Joint Propulsion Conference and Exhibit
2001
View details for DOI 10.2514/6.2001-3330
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Dispersion of low frequency waves in a Hall discharge
37th Joint Propulsion Conference and Exhibit
2001
View details for DOI 10.2514/6.2001-3506
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A 90 GHz Phase-Bridge Interferometer for Plasma Density Measurements In the Near Field of a Hall Thruster
40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, Joint Propulsion Conferences
2001
View details for DOI 10.2514/6.2004-3775
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Doppler-free absorption measurements of Stark broadening in a flowing hydrogen plasma
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
2000; 66 (4): 343-361
View details for Web of Science ID 000087091600003
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Methyl concentration measurements during microwave plasma-assisted diamond deposition
PLASMA CHEMISTRY AND PLASMA PROCESSING
2000; 20 (1): 1-12
View details for Web of Science ID 000086551300001
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Raman scattering measurements of molecular hydrogen in a low-density, arc-heated plasma
APPLIED PHYSICS B-LASERS AND OPTICS
2000; 70 (3): 419-427
View details for Web of Science ID 000088307800016
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A low-power, linear-geometry Hall plasma source with an open electron-drift
PLASMA SOURCES SCIENCE & TECHNOLOGY
2000; 9 (1): 68-76
View details for Web of Science ID 000085585100011
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Vacuum emission and breakdown characteristics of a planar He-Xe microdischarge
APPLIED PHYSICS LETTERS
2000; 76 (5): 544-546
View details for Web of Science ID 000084938700008
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Characterization and dielectric properties of fluorinated amorphous carbon measured by capacitance-voltage response and spectroscopic ellipsometry
Symposium on Amorphous and Nanostructured Carbon at the 1999 MRS Fall Meeting
MATERIALS RESEARCH SOCIETY. 2000: 341–346
View details for Web of Science ID 000089239300053
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Fluctuation-induced electron transport in closed-drift Hall discharges
27th IEEE International Conference on Plasma Science
2000
View details for DOI 10.1109/PLASMA.2000.854979
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Vacuum ultraviolet emission and metastable state properties of DC microdischarges
27th IEEE International Conference on Plasma Science
2000
View details for DOI 10.1109/PLASMA.2000.854759
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Electron density measurements for determining the anomalous electron mobility in a coaxial Hall discharge plasma
36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
2000
View details for DOI 10.2514/6.2000-3420
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A molecular beam mass spectrometer for plasma jet chemical vapor deposition reactor diagnostics
27th IEEE International Conference on Plasma Science
2000
View details for DOI 10.1109/PLASMA.2000.854738
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Electrohydrodynamic flow control with a glow-discharge surface plasma
AIAA journal
2000; 38 (7): 1166-1172
View details for DOI 10.2514/2.1110
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Model predictions versus experiments: CH3 radical density profiles in diamond deposition microwave plasma reactor
6th International Symposium on Diamond Materials at the 196th Meeting of the Electrochemical-Society
ELECTROCHEMICAL SOCIETY INC. 2000: 41–52
View details for Web of Science ID 000089239900005
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Ion energy and momentum flux dependence of diamond-like carbon film synthesis in radio frequency discharges
SURFACE & COATINGS TECHNOLOGY
1999; 114 (2-3): 224-229
View details for Web of Science ID 000080808500015
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Coherent structures in crossed-field closed-drift Hall discharges
IEEE TRANSACTIONS ON PLASMA SCIENCE
1999; 27 (1): 96-97
View details for Web of Science ID 000080369700047
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In situ plasma analysis, fluorine incorporation, thermostability, stress, and hardness comparison of fluorinated amorphous carbon and hydrogenated amorphous carbon thin films deposited on Si by plasma enhanced chemical vapor deposition
Symposium O: Low-Dielectric Constant Materials at the 1999 MRS Spring Meeting
MATERIALS RESEARCH SOCIETY. 1999: 285–290
View details for Web of Science ID 000085482500035
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Laser-induced fluorescence measurements of a helium arcjet flow
30th Plasmadynamic and Lasers Conference
1999
View details for DOI 10.2514/6.1999-3603
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Characterization of plasma disturbances in a Hall discharge using a double probe
30th Plasmadynamic and Lasers Conference
1999
View details for DOI 10.2514/6.1999-3437
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Operating characteristics of a linear Hall thruster with an open electron-drift
35th Joint Propulsion Conference and Exhibit
1999
View details for DOI 10.2514/6.1999-2569
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Interior and exterior laser-induced fluorescence and plasma potential measurements on a laboratory Hall thruster
35th Joint Propulsion Conference and Exhibit
1999
View details for DOI 10.2514/6.1999-2721
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Optical study of anomalous electron transport in a laboratory Hall thruster
35th Joint Propulsion Conference and Exhibit
1999
View details for DOI 10.2514/6.1999-2284
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Low-rate reactive and non-reactive low pressure plasma spraying
IEEE International Conference on Plasma Science
1999
View details for DOI 10.1109/PLASMA.1999.829475
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LIF measurements of a low-power helium arcjet
IEEE International Conference on Plasma Science
1999
View details for DOI 10.1109/PLASMA.1999.829653
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Mass spectrometric investigations of a plasma jet chemical vapor deposition reactor
IEEE International Conference on Plasma Science
1999
View details for DOI 10.1109/PLASMA.1999.829476
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Laser induced fluorescence measurements within a laboratory Hall thruster
30th Plasmadynamic and Lasers Conference
1999
View details for DOI 10.2514/6.1999-3436
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The structure of an expanding hydrogen arcjet plasma
PHYSICS OF PLASMAS
1998; 5 (12): 4488-4497
View details for Web of Science ID 000077031000047
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Competing surface oxidation reactions during diamond synthesis in low pressure flames
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS
1998; 37 (11): 6223-6228
View details for Web of Science ID 000077648000079
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Temperature measurements in low-pressure, diamond-forming, premixed flames
JOURNAL OF APPLIED PHYSICS
1998; 84 (8): 4595-4602
View details for Web of Science ID 000076185100083
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Arcjet nozzle flow-field characterization by laser-induced fluorescence
APPLIED OPTICS
1998; 37 (3): 486-495
Abstract
Laser-induced fluorescence of the Balmer-alpha (H(alpha)) transition of atomic hydrogen was performed within the nozzle of a 1-kW class radiatively cooled arcjet thruster operating on hydrogen and synthesized-hydrazine propellants. Axial velocities were determined from the Doppler shift of the H(alpha) line center relative to a stationary reference, whereas translational temperatures and electron number densities were determined from a line-shape analysis of the H(alpha) transition. The results are compared with a numerical model and indicate excellent agreement with the velocities, as well as temperatures near the nozzle exit. There are discrepancies, however, in the temperatures far upstream of the exit and in the electron densities, suggesting needed improvements in the modeling of the recombination chemistry.
View details for Web of Science ID 000071501400013
View details for PubMedID 18268611
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Plasma-jet deposition of diamond
Low-Pressure Synthetic Diamond
1998: 59-84
View details for DOI 10.1007/978-3-642-71992-9_4
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Overview of US academic programs in electric propulsion
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
1998
View details for DOI 10.2514/6.1998-3182
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Optical and electrostatic characterization of oscillatory Hall discharge behavior
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
1998
View details for DOI 10.2514/6.1998-3502
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Characterization of a low-power helium arcjet
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
1998
View details for DOI 10.2514/6.1998-3636
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Development of a linear Hall thruster
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
1998
View details for DOI 10.2514/6.1998-3336
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Diagnostics of Plasma Propulsion Devices
American Physical Society, Division of Plasma Physics Meeting
1998
View details for DOI 10.1109/PLASMA.1994.588875
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Measurements of electron density at the exit of an arcjet thruster
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
1998
View details for DOI 10.2514/6.1998-3635
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Laser induced fluorescence measurements on a laboratory Hall thruster
34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit
1998
View details for DOI 10.2514/6.1998-3645
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Main physical features and processes determining the performance of stationary plasma thrusters
Journal of Propulsion and Power
1998; 14 (5): 736-743
View details for DOI 10.2514/2.5335
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Near-edge X-ray absorption fine structure spectroscopy of arcjet-deposited cubic boron nitride
DIAMOND AND RELATED MATERIALS
1997; 6 (12): 1883-1886
View details for Web of Science ID A1997YG13600021
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Laser-induced fluorescence study of a xenon Hall thruster
APPLIED PHYSICS B-LASERS AND OPTICS
1997; 65 (4-5): 459-469
View details for Web of Science ID A1997YA61300005
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Low energy ion impact-enhanced growth of cubic boron nitride in a supersonic nitrogen/argon plasma flow
JOURNAL OF MATERIALS RESEARCH
1997; 12 (8): 2014-2026
View details for Web of Science ID A1997XQ27800009
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Arcjet plasma enhanced vapor phase epitaxy of GaN
MATERIALS LETTERS
1997; 31 (3-6): 161-164
View details for Web of Science ID A1997XF56700001
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CH3 detection in a low-density supersonic arcjet plasma during diamond synthesis
APPLIED PHYSICS LETTERS
1997; 70 (8): 1052-1054
View details for Web of Science ID A1997WJ62600046
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The transient behavior of a low power laboratory xenon Hall thruster
33rd Joint Propulsion Conference and Exhibit
1997
View details for DOI 10.2514/6.1997-3050
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Laser-induced fluorescence study of a xenon Hall thruster
33rd Joint Propulsion Conference and Exhibit
1997
View details for DOI 10.2514/6.1997-3053
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CH3 detection in a low-density supersonic arcjet plasma during diamond synthesis
Applied physics letters
1997; 70 (8): 1052 - 1054
View details for DOI 10.1063/1.118439
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A performance study of a low power Hall thruster
33rd Joint Propulsion Conference and Exhibit
1997
View details for DOI 10.2514/6.1997-3061
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Radiative emission analysis of an expanding hydrogen arc plasma .2. Plume region diagnostics through radial emission
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
1996; 56 (6): 919-932
View details for Web of Science ID A1996WA55600009
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Radiative emission analysis of an expanding hydrogen arc plasma .1. Arc region diagnostics through axial emission
JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
1996; 56 (6): 901-918
View details for Web of Science ID A1996WA55600008
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Interior plasma diagnostics of arcjet thrusters
JOURNAL OF PROPULSION AND POWER
1996; 12 (6): 1070-1076
View details for Web of Science ID A1996VT42600010
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Stark broadening corrections to laser-induced fluorescence temperature measurements in a hydrogen arcjet plume
APPLIED OPTICS
1996; 35 (24): 4913-4918
Abstract
Laser-induced fluorescence of the H(α) transition of atomic hydrogen has previously been performed in the plume of a hydrogen arcjet thruster. Measurements of plasma velocity and temperature, based on the Doppler shift and broadening of the H(α) line shape, were previously published [Appl. Opt. 32, 6117 (1993)]. In that paper the Stark broadening of the H(α) transition was estimated from static-ion calculations performed in the early 1970's and found to be negligible in comparison with the Doppler broadening. However, more recent dynamic-ion calculations have shown the Stark broadening to be considerably larger than was previously assumed, resulting in inaccurate temperature measurements. We present a reanalysis of the fluorescence data, taking into account the improved Stark broadening calculations. The correct atomic hydrogen translation temperature and electron number density are obtained from the Doppler and Stark broadening components of the measured line shape. The results indicate a substantial drop in temperature from those previously reported.
View details for Web of Science ID A1996VC32000030
View details for PubMedID 21102917
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Laser-induced fluorescence measurements of resonance broadening in xenon
PHYSICAL REVIEW A
1996; 54 (1): 335-342
View details for Web of Science ID A1996UX03400038
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Cubic boron nitride synthesis in low-density supersonic plasma flows
APPLIED PHYSICS LETTERS
1996; 68 (19): 2711-2713
View details for Web of Science ID A1996UJ08900037
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Fluorescence velocity measurements in the interior of a hydrogen arcjet nozzle
AIAA JOURNAL
1996; 34 (4): 853-855
View details for Web of Science ID A1996UC61100031
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GaN film growth by a supersonic arcjet plasma
Symposium on III-Nitride, SiC and Diamond Materials for Electronic Devices
MATERIALS RESEARCH SOCIETY. 1996: 359–364
View details for Web of Science ID A1996BG72B00055
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Laser-induced fluorescence diagnostics for xenon Hall thrusters
32nd Joint Propulsion Conference and Exhibit
1996
View details for DOI 10.2514/6.1996-2986
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Mass flux measurements in the plume of a low power arcjet nozzle
32nd Joint Propulsion Conference and Exhibit
1996
View details for DOI 10.2514/6.1996-3190
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Thermodynamic analysis based on measurements of flowfield properties in low power hydrogen arcjet thrusters
32nd Joint Propulsion Conference and Exhibit
1996
View details for DOI 10.2514/6.1996-3293
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LIF characterization of arcjet nozzle flows
32nd Joint Propulsion Conference and Exhibit
1996
View details for DOI 10.2514/6.1996-2987
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Plasma and Cathode Emission from a High Power Hydrogen Arcjet Thruster
32nd Joint Propulsion Conference and Exhibit
1996
View details for DOI 10.2514/6.1996-2703
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Diamond film synthesis in low pressure premixed flames of different fuel types
22nd International Conference on Metallurgical Coatings and Thin Films (ICMCTF 1995)
ELSEVIER SCIENCE SA. 1995: 791–96
View details for Web of Science ID A1995TM18000062
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DIAMOND FILM SYNTHESIS IN LOW-PRESSURE PREMIXED METHANE-OXYGEN FLAMES
APPLIED PHYSICS LETTERS
1995; 67 (8): 1081-1083
View details for Web of Science ID A1995RQ00200013
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EXPERIMENTAL INVESTIGATION OF VELOCITY SLIP NEAR AN ARCJET EXIT PLANE
AIAA JOURNAL
1995; 33 (2): 373-375
View details for Web of Science ID A1995QK49200029
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AN EXPERIMENTAL-STUDY OF THE TEMPERATURE AND STOICHIOMETRY DEPENDENCE OF DIAMOND GROWTH IN LOW-PRESSURE FLAT FLAMES
JOURNAL OF MATERIALS RESEARCH
1995; 10 (1): 149-157
View details for Web of Science ID A1995PY82100021
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LIF lineshape analysis of the xenon 6s(3/2)2 exp 0-6p(3/2)2 and 6s(3/2)1 exp 0-6p(1/2)0 transitions in a glow discharge
26th Plasmadynamics and Lasers Conference
1995
View details for DOI 10.2514/6.1995-1969
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Non-equilibrium flow phenomena in low power hydrogen arcjets
31st Joint Propulsion Conference and Exhibit
1995
View details for DOI 10.2514/6.1995-2819
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Laser-induced fluorescence measurements within an arcjet thruster nozzle
31st Joint Propulsion Conference and Exhibit
1995
View details for DOI 10.2514/6.1995-2381
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Raman scattering measurements of molecular hydrogen in an arcjet thruster plume
26th Plasmadynamics and Lasers Conference
1995
View details for DOI 10.2514/6.1995-1956
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High spectral resolution emission study of a low power hydrogen arcjet plume
26th Plasmadynamics and Lasers Conference
1995
View details for DOI 10.2514/6.1995-1960
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Ceramic thin film synthesis via arcjet CVD
31st Joint Propulsion Conference and Exhibit
1995
View details for DOI 10.2514/6.1995-2824
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Spectral imaging of the arcjet electrode region
26th Plasmadynamics and Lasers Conference
1995
View details for DOI 10.2514/6.1995-1957
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Pressure measurements in the plume of a low power arcjet nozzle
31st Joint Propulsion Conference and Exhibit
1995
View details for DOI 10.2514/6.1995-2818
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Linear stability analysis of the ionization layer of a diffuse anode arc
31st Joint Propulsion Conference and Exhibit
1995
View details for DOI 10.2514/6.1995-3064
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Stability of a near-thermal plasma in contact with an anode
26th Plasmadynamics and Lasers Conference
1995
View details for DOI 10.2514/6.1995-1991
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NUMERICAL AND EXPERIMENTAL INVESTIGATIONS OF LOW-DENSITY SUPERSONIC JETS OF HYDROGEN
JOURNAL OF FLUID MECHANICS
1994; 280: 41-67
View details for Web of Science ID A1994QA08600002
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DIAMOND FILM GROWTH IN LOW-PRESSURE PREMIXED ETHYLENE-OXYGEN FLAMES
APPLIED PHYSICS LETTERS
1994; 65 (22): 2786-2788
View details for Web of Science ID A1994PU40400010
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IN-SITU MASS SAMPLING DURING SUPERSONIC ARCJET SYNTHESIS OF DIAMOND
4th European Conference on Diamond, Diamond-like and Related Materials (Diamond Films 93)
ELSEVIER SCIENCE SA. 1994: 417–21
View details for Web of Science ID A1994NN16000022
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2ND-ORDER RAMAN-SCATTERING IN DIAMOND UP TO 1900 K
PHYSICAL REVIEW B
1994; 49 (5): 3213-3216
View details for Web of Science ID A1994MW34900029
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In-situ mass sampling during supersonic arcjet synthesis of diamond
Diamond and Related Materials
1994; 3 (4–6): 417–421
View details for DOI 10.1016/0925-9635(94)90195-3
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Semiconductor Laser Diagnostics for Xenon Plasmas
30th Joint Propulsion Conference and Exhibit
1994
View details for DOI 10.2514/6.1994-2739
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Interior plasma diagnostics of arcjet thrusters
25th Plasmadynamics and Lasers Conference, Fluid Dynamics and Co-located Conferences
1994
View details for DOI 10.2514/6.1994-2654
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Axial emission measurements on a medium power hydrogen arcjet thruster
30th Joint Propulsion Conference and Exhibit
1994
View details for DOI 10.2514/6.1994-2743
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A MULTI-FLUID STAGNATION-FLOW PLASMA MODEL WITH SELF-CONSISTENT TREATMENT OF THE COLLISIONAL SHEATH
IEEE TRANSACTIONS ON PLASMA SCIENCE
1993; 21 (6): 768-777
View details for Web of Science ID A1993MQ94100019
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LASER-INDUCED FLUORESCENCE DIAGNOSTIC FOR TEMPERATURE AND VELOCITY-MEASUREMENTS IN A HYDROGEN ARCJET PLUME
APPLIED OPTICS
1993; 32 (30): 6117-6127
Abstract
A diagnostic has been developed to measure velocity and translational temperature in the plume of a 1-kW-class arcjet thruster operating on hydrogen. Laser-induced fluorescence with a narrow-band cw laser is used to probe the Balmer α transition of excited atomic hydrogen. The velocity is determined from the Doppler shift of the fluorescence excitation spectrum, whereas the temperature is inferred from the lineshape. Analysis shows that although Doppler broadening is the only significant broadening mechanism, the fine structure of the transition must be taken into account. Near the exit plane, axial velocities vary from 4 to 14 km/s, radial velocities vary from 0 to 4 km/s, and swirl velocities are shown to be relatively small. Temperatures from 1000 to 5000 K indicate high dissociation fractions.
View details for Web of Science ID A1993MC05300035
View details for PubMedID 20856439
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TEMPERATURE-DEPENDENCE OF THE CUBIC BORON-NITRIDE RAMAN LINES
PHYSICAL REVIEW B
1993; 47 (21): 14193-14199
View details for Web of Science ID A1993LF72900029
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2 PRECURSOR MODEL FOR LOW-PRESSURE CHEMICAL-VAPOR-DEPOSITION OF SILICON DIOXIDE FROM TETRAETHYLORTHOSILICATE
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
1993; 11 (3): 720-726
View details for Web of Science ID A1993LH22800029
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2-TEMPERATURE FLUID MODEL FOR HIGH-PRESSURE PLASMAS IN CONTACT WITH COOLED ELECTRODES
JOURNAL OF APPLIED PHYSICS
1993; 73 (7): 3172-3182
View details for Web of Science ID A1993KV03100009
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SUPERSONIC DC-ARCJET SYNTHESIS OF DIAMOND
DIAMOND 92 - 3RD INTERNATIONAL CONF ON THE NEW DIAMOND SCIENCE AND TECHNOLOGY / 3RD EUROPEAN CONF ON DIAMOND, DIAMOND-LIKE AND RELATED COMPOUNDS
ELSEVIER SCIENCE SA. 1993: 454–61
View details for Web of Science ID A1993LE62000071
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THE NONEQUILIBRIUM REGION OF AN ELECTRODE IN CONTACT WITH A FLOWING THERMAL PLASMA
IEEE TRANSACTIONS ON PLASMA SCIENCE
1993; 21 (1): 194-201
View details for Web of Science ID A1993LD70900027
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A multi-fluid model of near-electrode plasma behavior
29th Joint Propulsion Conference and Exhibit
1993
View details for DOI 10.2514/6.1993-2103
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Characterization of a supersonic hydrogen arcjet plasma thruster employed in diamond film synthesis
29th Joint Propulsion Conference and Exhibit
1993
View details for DOI 10.2514/6.1993-2227
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Characterization of a supersonic hydrogen arcjet plasma thruster employed in diamond film synthesis
29th Joint Propulsion Conference and Exhibit
1993
View details for DOI 10.2514/6.1993-2227
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A comparison of arcjet plume properties to model predictions
31st Aerospace Sciences Meeting
1993
View details for DOI 10.2514/6.1993-820
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Temperature dependence of the cubic boron nitride Raman lines
Physical Review B
1993; 47 (21): 14193–14199
View details for DOI 10.1103/PhysRevB.47.14193
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Plume characteristics of an arcjet thruster
29th Joint Propulsion Conference and Exhibit
1993
View details for DOI 10.2514/6.1993-2530
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Two precursor model for low‐pressure chemical vapor deposition of silicon dioxide from tetraethylorthosilicate
Journal of Vacuum Science & T
1993; 11 (3): 720 - 726
View details for DOI 10.1116/1.586778
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Monte Carlo and experimental studies of nozzle flow in a low-power hydrogen arcjet
29th Joint Propulsion Conference and Exhibit
1993
View details for DOI 10.2514/6.1993-2529
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A MODEL OF DIAMOND GROWTH IN LOW-PRESSURE PREMIXED FLAMES
JOURNAL OF APPLIED PHYSICS
1992; 72 (11): 5461-5466
View details for Web of Science ID A1992KA93200066
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DIAMOND SYNTHESIS IN SUPERSONIC DIRECT-CURRENT ARCJET PLASMA AT SUBTORR PRESSURES
19TH INTERNATIONAL CONF ON METALLURGICAL COATINGS AND THIN FILMS
ELSEVIER SCIENCE SA. 1992: 408–13
View details for Web of Science ID A1992KA63900011
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1ST-ORDER RAMAN-SCATTERING IN HOMOEPITAXIAL CHEMICAL VAPOR-DEPOSITED DIAMOND AT ELEVATED-TEMPERATURES
CONF ON APPLIED DIAMOND
ELSEVIER SCIENCE SA. 1992: 206–15
View details for Web of Science ID A1992HW79400032
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DEVELOPMENT OF DESIGN RULES FOR RELIABLE TUNGSTEN PLUGS USING SIMULATIONS
30TH ANNUAL INTERNATIONAL SYMP ON RELIABILITY PHYSICS
I E E E. 1992: 8–10
View details for Web of Science ID A1992BW01T00003
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Flow diagnostics of an arcjet using laser-induced fluorescence
28th Joint Propulsion Conference and Exhibit
1992
View details for DOI 10.2514/6.1992-3243
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Laser-induced fluorescence of atomic hydrogen in an arcjet thruster
30th Aerospace Sciences Meeting and Exhibit
1992
View details for DOI 10.2514/6.1992-678
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Molecular hydrogen Raman scattering in a low power arcjet thruster
28th Joint Propulsion Conference and Exhibit
1992
View details for DOI 10.2514/6.1992-3566
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Supersonic dc-arcjet plasma at subtorr pressures as a medium for diamond film synthesis
28th Joint Propulsion Conference and Exhibit
1992
View details for DOI 10.2514/6.1992-3534
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Modeling of the near-electrode regions of arcjets. I-Coupling of the flowfield to the non-equilibrium boundary layers
28th Joint Propulsion Conference and Exhibit
1992
View details for DOI 10.2514/6.1992-3109
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Vacuum ultraviolet absorption in a hydrogen arcjet
28TH JOINT PROPULSION CONFERENCE AND EXHIBIT
1992
View details for DOI 10.2514/6.1992-3564
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A 3-DIMENSIONAL MODEL FOR LOW-PRESSURE CHEMICAL-VAPOR-DEPOSITION STEP COVERAGE IN TRENCHES AND CIRCULAR VIAS
JOURNAL OF APPLIED PHYSICS
1991; 70 (11): 7137-7140
View details for Web of Science ID A1991GU04900074
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1ST-ORDER RAMAN-SPECTRUM OF DIAMOND AT HIGH-TEMPERATURES
PHYSICAL REVIEW B
1991; 43 (14): 11740-11744
View details for Web of Science ID A1991FM46300021
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HIGH-TEMPERATURE RAMAN-SCATTERING BEHAVIOR IN DIAMOND
4TH CONF ON DIAMOND OPTICS
SPIE - INT SOC OPTICAL ENGINEERING. 1991: 158–168
View details for Web of Science ID A1991BU90M00015
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Velocity measurements in a hydrogen arcjet using LIF
AIAA/SAE/ASME/ASEE 27th Joint Propulsion Conference
1991
View details for DOI 10.2514/6.1991-2112
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First-order Raman spectrum of diamond at high temperatures
Physical Review B
1991; 43 (14): 11740–11744
View details for DOI 10.1103/PhysRevB.43.11740
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DIAMOND SYNTHESIS IN A 50-KW INDUCTIVELY COUPLED ATMOSPHERIC-PRESSURE PLASMA TORCH
2ND INTERNATIONAL CONF ON THE NEW DIAMOND SCIENCE AND TECHNOLOGY
MATERIALS RESEARCH SOC. 1991: 497–502
View details for Web of Science ID A1991BU83N00072
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ON THE DEVELOPMENT OF INSITU RAMAN ANALYSIS FOR PLASMA DEPOSITED DIAMOND
2ND INTERNATIONAL CONF ON THE NEW DIAMOND SCIENCE AND TECHNOLOGY
MATERIALS RESEARCH SOC. 1991: 225–231
View details for Web of Science ID A1991BU83N00031
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DIAMOND SYNTHESIS IN A 50 KW INDUCTIVELY COUPLED ATMOSPHERIC-PRESSURE PLASMA TORCH
3RD SYMP ON PLASMA PROCESSING AND SYNTHESIS OF MATERIALS
MATERIALS RESEARCH SOC. 1991: 131–136
View details for Web of Science ID A1991BT70A00020
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HIGH GROWTH-RATE DIAMOND SYNTHESIS IN A LARGE AREA ATMOSPHERIC-PRESSURE INDUCTIVELY COUPLED PLASMA
JOURNAL OF MATERIALS RESEARCH
1990; 5 (11): 2326-2333
View details for Web of Science ID A1990EH57600008
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LASER-INDUCED FLUORESCENCE IMAGING OF LASER-ABLATED BARIUM
APPLIED PHYSICS LETTERS
1990; 56 (18): 1715-1718
View details for Web of Science ID A1990DB07100001
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AN INVESTIGATION OF DIAMOND FILM DEPOSITION IN A PREMIXED OXYACETYLENE FLAME
JOURNAL OF APPLIED PHYSICS
1990; 67 (5): 2596-2602
View details for Web of Science ID A1990CR96900062
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ELECTRON-DENSITY RADIAL PROFILES DERIVED FROM STARK-BROADENING IN A SODIUM PLASMA PRODUCED BY LASER RESONANCE SATURATION
APPLIED OPTICS
1987; 26 (6): 1058-1067
Abstract
The first free electron density radial profiles of a sodium plasma created by laser resonance saturation are reported. The measurements were based on Stark broadening, of the 4(2)D-3(2)P multiplet and reveal the formation of a conically shaped plasma along the path of the laser pulse, which can be attributed to strong absorption of the laser pulse along the ionization path.
View details for Web of Science ID A1987G929900019
View details for PubMedID 20454270
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Laser resonance saturation
Advances in Laser Science-I
1986: 658–63
View details for DOI 10.1063/1.35819
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SODIUM ATOM DISTRIBUTION WITHIN A HEAT SANDWICH OVEN
REVIEW OF SCIENTIFIC INSTRUMENTS
1985; 56 (11): 2030-2034
View details for Web of Science ID A1985ATS8900006
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2-CHANNEL TECHNIQUE FOR STARK MEASUREMENTS OF ELECTRON-DENSITY WITHIN A LASER-PRODUCED SODIUM PLASMA
APPLIED OPTICS
1984; 23 (13): 2107-2114
View details for Web of Science ID A1984SY73300020
View details for PubMedID 18212956
- Energetic neutral particle production in the cathode sheath of direct-current discharges
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Arcjet thrusters for the synthesis of diamond and cubic-boron nitride films
30th Joint Propulsion Conference and Exhibit
1994
View details for DOI 10.2514/6.1994-3233
- A Kinetic Study of Electron-Wall Collisions in a Hall Thruster
- FURTHER INVESTIGATIONS OF AN OPEN DRIFT HALL THRUSTER WITH BORON NITRIDE AND DIAMOND WALL
- Nanosecond repetitively pulsed discharge control of premixed lean methane-air combustion 65th Annual Gaseous Electronics Conference, Austin, TX 2012
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Tunable surface plasmon resonance in laser-induced plasma spheroids
PLASMA SOURCES SCIENCE & TECHNOLOGY
2021; 30 (4)
View details for DOI 10.1088/1361-6595/abc5a2
View details for Web of Science ID 000640395600001
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Physics of ExB discharges relevant to plasma propulsion and similar technologies
PHYSICS OF PLASMAS
2020; 27 (12)
View details for DOI 10.1063/5.0010135
View details for Web of Science ID 000600206100001
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Editorial conclusions to the special issue on electrical discharges for aerospace applications
JOURNAL OF PHYSICS D-APPLIED PHYSICS
2020; 53 (41)
View details for DOI 10.1088/1361-6463/ab9d9a
View details for Web of Science ID 000553970700001
- Laser-induced breakdown stabilization of non-premixed jet diffusion flames Bulletin of the American Physical Society 2012; 57 (8)
- Characteristics of low frequency air glow dielectric barrier discharges at atmospheric pressure 2012
- Cross-Field Transport of Electrons in Hall Plasma Accelerators 2012
- Advanced Plasma Propulsion DTIC Document 2011
- Experimental Study of Supersonic Inlet Flow Unstart Induced by Mass Injection Bulletin of the American Physical Society 2011
- Quenching of electronically excited states of molecular nitrogen in nanosecond repetitive pulsed discharges in atmospheric pressure air Bulletin of the American Physical Society 2011; 56 (15)
- Laminar lean premixed methane/air combustion near the lean flammability limit using nanosecond repetitive pulsed discharge plasmas Bulletin of the American Physical Society 2011
- SUPERSONIC INLET DUCT UNSTART INDUCED BY FUEL JET INJECTION 7th International Symposium on Turbulence and Shear Flow Phenomena 2011
- Advanced Plasma Propulsion PRINCETON UNIV NJ 2011: 145
- Experimental Characterization of High Frequency Instabilities within the Discharge Channel of a Hall Thruster 31st International Electric Propulsion Conference 2009
- Laser-Induced Fluorescence Velocity Measurements of a Low Power Cylindrical Hall Thruster DTIC Document 2009
- Predicting Electron Transport Using Simulated Axial Waves in a Radial-Axial Hybrid Hall Thruster Model Technical paper 2009
- Bismuth Hall thruster I: Simulation-suggested design and performance Journal of Technical Physics 2008; 3–4 (49): 329–348
- Bismuth Hall thruster II: Simulated diagnostics Journal of Technical Physics 2008; 49 (3-4): 349-361
- Role of Negative Ions and Crosstalk in DBD Flow Actuation Bulletin of the American Physical Society 2008
- Towards Reduced Wall Effect Hall Plasma Accelerators 2007
- Preliminary Study of Arcjet Neutralization of Hall Thruster Clusters (Postprint) 2007
- Millimeter Wave Plasma Interferometry in the Near Field of a Hall Plasma Accelerator (PREPRINT) DTIC Document 2006
- Ultra-Low Power Stationary Plasma Thruster 29th International Electric Propulsion Conference 2005
- Stationary reference Bi discharge cell for optical diagnostics of a bismuth Hall thruster 29th International Electric Propulsion Conference 2005
- A Two-Dimensional Hybrid (z-theta) Simulation of Coaxial Hall Thrusters 29th International Electric Propulsion Conference 2005
- Hall thruster with an external acceleration zone DTIC Document 2005
- Effect of Charge Exchange on 2D Hall Thruster Simulation 29th International Electric Propulsion Conference 2005
- Hall Thruster With an External Acceleration Zone AIR FORCE RESEARCH LAB EDWARDS AFB CA SPACE AND MISSILE PROPULSION DIV 2005: 8
- Non-local electric field effects in magnetized plasmas 29th International Electric Propulsion Conference 2005
- A Two-Dimensional (z-θ) Fluid/PIC Simulation of Coaxial Hall Thrusters 29th International Electric Propulsion Conference 2005
- Wall effects on the excitation and propagation of instabilities in Hall thrusters 2003
- Preliminary Study of Arcjet Neutralization of Hall Thruster Clusters 2001
- Linear geometry Hall thruster with boron nitride and diamond walls 2001
- Advanced Optical and Electrostatic Characterization of Closed-Electron Drift Thrusters 2001
- Performance studies of a colloid thruster system 2001
- Characterization of Inert Gas Plasma Thrusters 2000
- A Linear Stability Analysis of a Magnetized Hall Plasma Discharge American Physical Society, 42nd Annual Meeting of the APS Division of Plasma Physics combined with the 10th International Congress on Plasma Physics October 23 - 27, 2000 Québec City, Canada Meeting ID: DPP00 2000
- Interior and Exterior Laser-Induced Fluorescence and Plasma Potential Measurements on a Laboratory Hall Thruster (Postprint) DTIC Document 1999
- The Breakdown and Vacuum Emission Characteristics of a High Surface Area to Volume Ratio Discharge American Physical Society, Gaseous Electronics Conference 1999
- Dispersion of Low-Frequency Azimuthal Waves in Hall Discharges American Physical Society, 41st Annual Meeting of the Division of Plasma Physics 1999
- Electrical and VUV/Vis. Emission Characteristics of a Xe/He microdischarge American Physical Society, 41st Annual Meeting of the Division of Plasma Physics 1999
- Measurements of Ion Energy and Ion Flux Distributions in Inductively Coupled Plasmas in CF4/O2/Ar Mixtures 1999
- Anomalous Transport in Closed-Drift Hall Discharges American Physical Society, 41st Annual Meeting of the Division of Plasma Physics 1999
- CF2 Detection in Radio-Frequency Ar/CHF3 Plasmas by Fourier Transform Infrared Spectroscopy American Physical Society, Gaseous Electronics Conference 1999
- Langmuir Probe Distortions and Probe Compensation in an Inductively Coupled Plasma 1999
- Laser-Induced Fluorescence Measurements within a Laboratory Hall Thruster (Postprint) 1999
- CH3 and CFx Detection in Low Pressure RF Discharges by Broadband Ultraviolet Absorption Spectroscopy 1998
- In Situ CF3 Detection in Low Pressure RF Discharges by Fourier Transform Infrared Spectroscopy 1998
- Laser Induced Fluorescence Measurements on a Laboratory Hall Thruster (Postprint) stormingmedia.us 1998: 12
- Ion Energy Distributions and their Relative Abundance in Inductively Coupled Plasmas 51st Annual Gaseous Electronics Conference & 4th International Conference on Reactive Plasmas 1998
- Oscillatory Behavior in Closed-Drift Hall Plasma Discharges American Physical Society, Division of Plasma Physics Meeting 1998
- 2D simulations of Hall thrusters CTR Annual Research Briefs 1998
- Laser Induced Fluorescence Measurements on a Laboratory Hall Thruster (Postprint) 1998
- Fundamental Studies of the Electrode Regions in Arcjet Thrusters 1998
- Langmuir Probe Measurements in an Inductively Coupled GEC Reference Cell Plasma APS Meeting Abstracts 1998
- The Stability of Arc Attachment in Arcjet Propulsion Devices. STANFORD UNIV CA DEPT OF MECHANICAL ENGINEERING 1997: 93
- A study of a Low Power Hall thruster transient Behavior International Electric 1997
- Fundamental Studies of the Near-Electrode Regions in Arcjet Thrusters. 1995
- Optical diagnostics of a low power hydrogen arcjet International Electric 1991
- An investigation of diamond synthesis in an oxygen-acetylene diffusion flame 1990
- Development of optical diagnostics for performance evaluation of arcjet thrusters Final Report, High Temperature Gasdynamics Lab. 1989
- A Direct Comparison of Hydrogen Arcjet Thruster Properties to Model Predictions 23rd Int. Elec. Prop. Conf 1993