Bio

I am working on the development of advanced X-ray CCDs and their readout electronics for a proposed NASA X-ray probe mission - Advanced X-ray Imaging Satellite (AXIS).

I am also involved in the development of novel X-ray detector technologies (e.g. Single electron sensitive Read Out / SiSeRO) which can provide order of magnitude faster readout speeds and sub-electron level of noise performance. Such detectors will be the key to the development of sensitive spectro-imagers for the next generation flagship astronomy missions.

I am interested in the X-ray spectro-polarimetric studies of galactic black hole systems and Gamma Ray Burst events to understand their radiation emission mechanisms.

Academic Appointments

  • Physical Science Research Scientist, Kavli Institute for Particle Astrophysics and Cosmology

Administrative Appointments

  • Staff Scientist, Stanford University (2021 - Present)
  • Postdoctoral Scholar, Stanford University (2019 - 2021)
  • Postdoctoral Scholar, Pennsylvania State University (2016 - 2019)
  • Postdoctoral Scholar, Physical Research Laboratory (2016 - 2016)

Honors & Awards

  • Justice Oak Award, Astronomical Society of India (2018)

Boards, Advisory Committees, Professional Organizations

  • Full Member, American Astronomical Society (AAS) (2022 - Present)
  • Full Member, Astronomical society of India (ASI) (2023 - Present)

Professional Education

  • PhD, Physical Research Laboratory, Astrophysics (2016)
  • M.Sc., BHU (India), Physics (2010)
  • B.Sc., Burdwan University (India), Physics (2008)

Contact

  • Academic
    tanmoyc@stanford.edu
    University - Academic staff Department: KIPAC Position: Physical Science Research Scientist

Additional Info

Links

Current Research and Scholarly Interests

In order to cope up with the large photon flux at the focal plane of the next generation large area telescopes (e.g. X-ray mission concepts like Lynx), the focal plane detectors need to be extremely fast (order of magnitude faster compared to the Chandra CCDs) and low noise to avail <1 keV measurements along with small pixel sizes in order to fully utilize the high angular resolution of the next generation X-ray mirrors. One approach towards achieving these goals is to use active pixel sensors. As part of the collaboration between the Penn State University and the Teledyne Imaging Sensors to develop Silicon based X-ray Hybrid CMOS detectors (an active pixel sensor), I was involved in characterizing these X- ray HCDs with Cryogenic SIDECAR ASICs. The other approach is to build upon the success of Chandra by developing faster and low noise X-ray CCDs and readout electronics. As a part of the collaboration between the Stanford University, MIT and MIT Lincoln Laboratory, I have been working on the development of fast low noise readout electronics and characterization of these new generation X-ray CCDs. While the X-ray CCDs are based on traditional source follower voltage readout, an alternate option utilizing current readout from these detectors (like in DEPFETs) can provide faster readout along with extremely low noise yield. I am currently working on one such novel technology called Single electron sensitive readout (SiSeRO) manufactured in collaboration with MITLL. Moreover, SiSeROs are supposed to provide sub-electron read noise by utilizing the so-called repetitive non-destructive readout (RNDR) of the charge packets. We are currently working on the readout circuitry to enable this feature and developing a suitable set up to test these aspects. If successful, it might also be possible to develop a matrix of these current readout amplifiers to develop a SiSeRO active pixel sensor.

I am interested in the hard X-ray polarimetric studies of X-ray sources. With the advent of hard X-ray mirrors (e.g. NuSTAR), it is now possible to conceive hard X-ray polarimeters at the focal plane of hard X-ray telescopes. I have been working on the performance study and development of one such instrument which consisted of a central plastic scatterer (viewed by a PMT) surrounded by an array of CsI(Tl) scintillators (read out by Si photo-multipliers). We are also exploring the possibility of replacing the plastic scatterer by a fast Silicon imager (a fast X-ray CCD / SiSeRO matrix / X-ray HCD) to enable simultaneous X-ray spectroscopy, imaging, timing and polarimetry.

I am involved in the X-ray spectro-polarimetric studies with CdZnTe Imager (CZTI) onboard Indian astronomy mission – AstroSat for various bright X-ray sources. We verified polarimetric capabilities of CZTI by measuring polarization of Crab pulsar and nebula. Currently, I am leading the spectro-polarimetry studies of Gamma-ray Bursts and Cygnus X-1, a high mass black hole X-ray binary using AstroSat-CZTI data.

All Publications

  • A Detailed Time-resolved and Energy-resolved Spectro-polarimetric Study of Bright Gamma-Ray Bursts Detected by AstroSat CZTI in Its First Year of Operation ASTROPHYSICAL JOURNAL Gupta, R., Pandey, S. B., Gupta, S., Chattopadhayay, T., Bhattacharya, D., Bhalerao, V., Castro-Tirado, A. J., Valeev, A., Ror, A. K., Sharma, V., Racusin, J., Aryan, A., Iyyani, S., Vadawale, S. 2024; 972 (2)

    View details for DOI 10.3847/1538-4357/ad5a92

    View details for Web of Science ID 001304260700001

  • Localization of gamma-ray bursts using AstroSat Mass Model MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Saraogi, D., Aditya, J., Bhalerao, V., Bala, S., Balasubramanian, A., Mate, S., Chattopadhyay, T., Gupta, S., Prasad, V., Waratkar, G., Navaneeth, P. K., Gopalakrishnan, R., Bhattacharya, D., Dewangan, G., Vadawale, S. 2024; 530 (2): 1386-1393

    View details for DOI 10.1093/mnras/stae435

    View details for Web of Science ID 001203832700003

  • High Hard X-Ray Polarization in Cygnus X-1 Confined to the Intermediate Hard State: Evidence for a Variable Jet Component ASTROPHYSICAL JOURNAL LETTERS Chattopadhyay, T., Kumar, A., Rao, A. R., Bhargava, Y., Vadawale, S. V., Ratheesh, A., Dewangan, G., Bhattacharya, D., Mithun, N. S., Bhalerao, V. 2024; 960 (1)

    View details for DOI 10.3847/2041-8213/ad118d

    View details for Web of Science ID 001133749000001

  • X-ray speed reading with the MCRC: prototype success and next generation upgrades Orel, P., Pan, A. Y., Herrmann, S. C., Chattopadhyay, T., Morris, G. R., Stueber, H., Allen, S. W., Wilkins, D. R., Prigozhin, G. Y., LaMarr, B. J., Foster, R. F., Malonis, A. C., Bautz, M. W., Cooper, M. J., Donlon, K., Holland, A. D., Minoglou, K. SPIE-INT SOC OPTICAL ENGINEERING. 2024

    View details for DOI 10.1117/12.3019147

    View details for Web of Science ID 001322667300018

  • Continued developments in X-ray speed reading: fast, low noise readout for next-generation wide-field imagers Herrmann, S. C., Orel, P., Chattopadhyay, T., Morris, G. R., Prigozhin, G. Y., Stueber, H. R., Allen, S. W., Bautz, M. W., Donlon, K., LaMarr, B. J., Leitz, C. W., Miller, E. D., Pan, A., Poliszczuk, A., Wilkins, D. R., Holland, A. D., Minoglou, K. SPIE-INT SOC OPTICAL ENGINEERING. 2024

    View details for DOI 10.1117/12.3018198

    View details for Web of Science ID 001322667300052

  • Demonstrating sub-electron noise performance in Single electron Sensitive Readout (SiSeRO) devices Chattopadhyay, T., Herrmann, S., Orel, P., Donlon, K., Allen, S. W., Bautz, M. W., Cantrall, B., Cooper, M., LaMarr, B., Leitz, C., Miller, E., Morris, R., Pan, A. Y., Prigozhin, G., Prigozhin, I., Stuber, H. R., Wilkins, D. R., Holland, A. D., Minoglou, K. SPIE-INT SOC OPTICAL ENGINEERING. 2024

    View details for DOI 10.1117/12.3020855

    View details for Web of Science ID 001322667300037

  • The XOC X-ray Beamline: Probing Colder, Quieter, and Softer Stueber, H. R., Chattopadhyay, T., Herrmann, S. C., Orel, P., Gebre, T., Joshi, A., Allen, S. W., Morris, G. R., Poliszczuk, A., Holland, A. D., Minoglou, K. SPIE-INT SOC OPTICAL ENGINEERING. 2024

    View details for DOI 10.1117/12.3017691

    View details for Web of Science ID 001322667300048

  • Towards efficient machine-learning-based reduction of the cosmic-ray induced background in X-ray imaging detectors: increasing context awareness Poliszczuk, A., Wilkins, D., Allen, S. W., Miller, E. D., Chattopadhyay, T., Schneider, B., Darve, J., Bautz, M., Falcone, A., Foster, R., Grant, C. E., Herrmann, S., Kraft, R., Morris, R., Nulsen, P., Orel, P., Schellenberger, G., Stueber, H. R., DenHerder, J. W., Nikzad, S., Nakazawa, K. SPIE-INT SOC OPTICAL ENGINEERING. 2024

    View details for DOI 10.1117/12.3020598

    View details for Web of Science ID 001338129600047

  • Fast, low-noise image sensor technology for strategic X-ray astrophysics missions Bautz, M. W., Miller, E. D., Prigozhin, G. Y., LaMarr, B. J., Malonis, A., Foster, R., Grant, C. E., Schneider, B., Leitz, C., Donlon, K., Prigozhin, I., Lambert, R., Cooper, M., Herrmann, S. C., Orel, P., Chattopadhyay, T., Morris, R., Wilkins, D. R., Stueber, H. R., Poliszczuk, A., Allen, S. W., DenHerder, J. W., Nikzad, S., Nakazawa, K. SPIE-INT SOC OPTICAL ENGINEERING. 2024

    View details for DOI 10.1117/12.3019193

    View details for Web of Science ID 001338129600045

  • Demonstrating repetitive non-destructive readout with SiSeRO devices JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Chattopadhyay, T., Herrmann, S., Orel, P., Donlon, K., Prigozhin, G., Morris, G., Cooper, M., LaMarr, B., Malonis, A., Allen, S. W., Bautz, M. W., Leitz, C. 2024; 10 (1)

    View details for DOI 10.1117/1.JATIS.10.1.016004

    View details for Web of Science ID 001295821000023

  • Improved noise performance from the next-generation buried-channel p-MOSFET SiSeROs JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Chattopadhyay, T., Herrmann, S., Kaplan, M., Orel, P., Donlon, K., Prigozhin, G., Morris, G., Cooper, M., Malonis, A., Allen, S. W., Bautz, M. W., Leitz, C. 2023; 9 (2)

    View details for DOI 10.1117/1.JATIS.9.2.026001

    View details for Web of Science ID 001031359600016

  • Reduction of cosmic-ray induced background in astronomical X-ray imaging detectors via image segmentation methods Poliszczuk, A., Wilkins, D., Allen, S. W., Miller, E., Chattopadhyay, T., Bautz, M., Darve, J., Foster, R., Grant, C. E., Herrmann, S., Kraft, R., Morris, R., Orel, P., Sarkar, A., Schneider, B., Zelinski, M. E., Taha, T. M., Narayanan, B. N. SPIE-INT SOC OPTICAL ENGINEERING. 2023

    View details for DOI 10.1117/12.2677095

    View details for Web of Science ID 001259432500010

  • Extending the energy range of AstroSat-CZTI up to 380 keV with compton spectroscopy MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Kumar, A., Chattopadhyay, T., Vadawale, S. V., Rao, A. R., Mithun, N. S., Bhalerao, V., Bhattacharya, D. 2022; 516 (2): 3102-3112

    View details for DOI 10.1093/mnras/stac2466

    View details for Web of Science ID 000859214000016

  • Hard X-Ray Polarization Catalog for a Five-year Sample of Gamma-Ray Bursts Using AstroSat CZT Imager ASTROPHYSICAL JOURNAL Chattopadhyay, T., Gupta, S., Iyyani, S., Saraogi, D., Sharma, V., Tsvetkova, A., Ratheesh, A., Gupta, R., Mithun, N. S., Vaishnava, C. S., Prasad, V., Aarthy, E., Kumar, A., Rao, A. R., Vadawale, S., Bhalerao, V., Bhattacharya, D., Vibhute, A., Frederiks, D. 2022; 936 (1)

    View details for DOI 10.3847/1538-4357/ac82ef

    View details for Web of Science ID 000844317500001

  • Experimental verification of off-axis polarimetry with cadmium zinc telluride detectors of AstroSat-CZT Imager JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Vaishnava, C. S., Mithun, N. S., Vadawale, S. V., Aarthy, E., Patel, A. R., Adalja, H. L., Tiwari, N., Ladiya, T., Navale, N., Chattopadhyay, T., Rao, A. R., Bhalerao, V., Bhattacharya, D. 2022; 8 (3)

    View details for DOI 10.1117/1.JATIS.8.3.038005

    View details for Web of Science ID 000867436500016

  • Probing into emission mechanisms of GRB 190530A using time-resolved spectra and polarization studies: synchrotron origin? MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Gupta, R., Gupta, S., Chattopadhyay, T., Lipunov, Castro-Tirado, A. J., Bhattacharya, D., Pandey, S. B., Oates, S. R., Kumar, A., Hu, Y., Valeev, A. F., Minaev, P., Kumar, H., Vinko, J., Dimple, D., Sharma, Aryan, A., Castellon, A., Gabovich, A., Moskvitin, A., Ordasi, A., Pal, A., Pozanenko, A., Zhang, B., Kumar, B., Svinkin, D., Saraogi, D., Vlasenko, D., Fernandez-Garcia, E., Gorbovskoy, E., Anupama, G. C., Misra, K., Sarneczky, K., Kriskovics, L., Castro-Tirado, M. A., Caballero-Garcia, M. D., Tiurina, N., Balanutsa, P., Lopez, R. R., Sanchez-Ramirez, R., Szakats, R., Belkin, S., Guziy, S., Iyyani, S., Tiwari, S. N., Vadawale, S. V., Sun, T., Bhalerao, Kornilov, Sokolov, V. V. 2022; 511 (2): 1694-1713

    View details for DOI 10.1093/mnras/stac015

    View details for Web of Science ID 000753586700003

  • X-ray speed reading with the MCRC: a low noise CCD readout ASIC enabling readout speeds of 5 Mpixel/s/channel Orel, P., Herrmann, S., Chattopadhyay, T., Morris, G., Allen, S. W., Prigozhin, G. Y., Foster, R., Malonis, A., Bautz, M. W., Cooper, M. J., Donlon, K., Holland, A. D., Beletic, J. SPIE-INT SOC OPTICAL ENGINEERING. 2022

    View details for DOI 10.1117/12.2629049

    View details for Web of Science ID 000860926800057

  • Development and characterization of a fast and low noise readout for the next generation x-ray charge-coupled devices Journal of Astronomical Telescopes, Instruments, and Systems Chattopadhyay, T., et al 2022; 8 (2): 12

    View details for DOI 10.1117/1.JATIS.8.2.026005

  • First results on SiSeRO devices: a new x-ray detector for scientific instrumentation Journal of Astronomical Telescopes, Instruments, and Systems Chattopadhyay, T., et al 2022; 8 (2): 12

    View details for DOI 10.1117/1.JATIS.8.2.026006

  • Single electron Sensitive Readout (SiSeRO) X-ray detectors: Technological progress and characterization Chattopadhyay, T., Herrmann, S., Orel, P., Morris, R. G., Wilkins, D. R., Allen, S. W., Prigozhin, G., LaMarr, B., Malonis, A., Foster, R., Bautz, M. W., Donlon, K., Cooper, M., Leitz, C., Holland, A. D., Beletic, J. SPIE-INT SOC OPTICAL ENGINEERING. 2022

    View details for DOI 10.1117/12.2629050

    View details for Web of Science ID 000860926800021

  • Sub-MeV spectroscopy with AstroSat-CZT imager for gamma ray bursts JOURNAL OF ASTROPHYSICS AND ASTRONOMY Chattopadhyay, T., Gupta, S., Sharma, V., Iyyani, S., Ratheesh, A., Mithun, N. S., Aarthy, E., Palit, S., Kumar, A., Vadawale, S. V., Rao, A. R., Bhalerao, V., Bhattacharya, D. 2021; 42 (2)

    View details for DOI 10.1007/s12036-021-09718-2

    View details for Web of Science ID 000677607000002

  • The AstroSat mass model: Imaging and flux studies of off-axis sources with CZTI JOURNAL OF ASTROPHYSICS AND ASTRONOMY Mate, S., Chattopadhyay, T., Bhalerao, V., Aarthy, E., Balasubramanian, A., Bhattacharya, D., Gupta, S., Kutty, K., Mithun, N. S., Palit, S., Rao, A. R., Saraogi, D., Vadawale, S., Vibhute, A. 2021; 42 (2)

    View details for DOI 10.1007/s12036-021-09763-x

    View details for Web of Science ID 000680556300001

  • Hard X-ray polarimetry-an overview of the method, science drivers, and recent findings JOURNAL OF ASTROPHYSICS AND ASTRONOMY Chattopadhyay, T. 2021; 42 (2)

    View details for DOI 10.1007/s12036-021-09769-5

    View details for Web of Science ID 000711430600001

  • Exploring sub-MeV sensitivity of AstroSat-CZTI for ON-axis bright sources JOURNAL OF ASTROPHYSICS AND ASTRONOMY Kumar, A., Chattopadhyay, T., Vadawale, S. V., Rao, A. R., Gupta, S., Mithun, N. S., Bhalerao, V., Bhattacharya, D. 2021; 42 (2)

    View details for DOI 10.1007/s12036-021-09711-9

    View details for Web of Science ID 000671767200001

  • Identifying charged particle background events in X-ray imaging detectors with novel machine learning algorithms Wilkins, D. R., Allen, S. W., Miller, E. D., Bautz, M., Chattopadhyay, T., Fort, S., Grant, C. E., Herrmann, S., Kraft, R., Morris, R. G., Nulsen, P., DenHerder, J. W., Nikzad, S., Nakazawa, K. SPIE-INT SOC OPTICAL ENGINEERING. 2021

    View details for DOI 10.1117/12.2562354

    View details for Web of Science ID 000674737700039

  • Progress toward fast, low-noise, low-power digital CCDs for Lynx and other high-energy astrophysics missions Bautz, M., Burke, B., Cooper, M., Craig, D., Donlon, K., Foster, R., Grant, C. E., LaMarr, B., Leitz, C., Malonis, A., Miller, E., Prigozhin, G., Thayer, C., Allen, S., Herrmann, S., Chattopadhyay, T., Morris, R. G., DenHerder, J. W., Nikzad, S., Nakazawa, K. SPIE-INT SOC OPTICAL ENGINEERING. 2021

    View details for DOI 10.1117/12.2561441

    View details for Web of Science ID 000674737700134

  • Spectropolarimetric analysis of prompt emission of GRB 160325A: jet with evolving environment of internal shocks MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Sharma, V., Iyyani, S., Bhattacharya, D., Chattopadhyay, T., Vadawale, S. V., Bhalerao, V. B. 2020; 493 (4): 5218–32

    View details for DOI 10.1093/mnras/staa570

    View details for Web of Science ID 000539094400047

  • Tiny-box: a tool for the versatile development and characterization of low noise fast x-ray imaging detectors X-Ray, Optical, and Infrared Detectors for Astronomy Chattopadhyay, T., Herrmann, S., Allen, S., Hirschman, J., Morris, G., Bautz, M., Malonis, A., Foster, R., Prigozhin, G., Craig, D., Burke, B. 2020

    View details for DOI 10.1117/12.2561826

  • MCRC V1: development of integrated readout electronics for next generation X-ray CCD detectors for future satellite observatories X-Ray, Optical, and Infrared Detectors for Astronomy Herrmann, S., Wong, J., Chattopadhyay, T., Morris, R. G., Burke, B., Prigozhin, G., Cooper, M., Craig, D., Donlon, K., Foster, R., Malonis, A., Bautz, M., Allen, S. 2020

    View details for DOI 10.1117/12.2561741

  • Water Recovery X-Ray Rocket grating spectrometer JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Miles, D. M., Hull, S., Schultz, T. B., Tutt, J., Wages, M., Donovan, B., Mcentaffer, R. L., Falcone, A. D., Anderson, T., Bray, E., Burrows, D. N., Chattopadhyay, T., Eichfeld, C. M., Empson, N., Grise, F., Hillman, C. R., McCoy, J. A., McQuaide, M., Myers, B. J., Steiner, T., Verschuuren, M. A., Yastishock, D., Zhang, N. 2019; 5 (4)

    View details for DOI 10.1117/1.JATIS.5.4.044006

    View details for Web of Science ID 000510649500016

  • Time-varying Polarized Gamma-Rays from GRB 160821A: Evidence for Ordered Magnetic Fields ASTROPHYSICAL JOURNAL LETTERS Sharma, V., Iyyani, S., Bhattacharya, D., Chattopadhyay, T., Rao, A. R., Aarthy, E., Vadawale, S. V., Mithun, N. S., Bhalerao, V. B., Ryde, F., Pe'er, A. 2019; 882 (1)

    View details for DOI 10.3847/2041-8213/ab3a48

    View details for Web of Science ID 000484250100005

  • AstroSat-CZTI Detection of Variable Prompt Emission Polarization in GRB 171010A ASTROPHYSICAL JOURNAL Chand, V., Chattopadhyay, T., Oganesyan, G., Rao, A. R., Vadawale, S. V., Bhattacharya, D., Bhalerao, V. B., Misra, K. 2019; 874 (1)

    View details for DOI 10.3847/1538-4357/ab0826

    View details for Web of Science ID 000462602500003

  • Prompt emission polarimetry of Gamma ray bursts with ASTROSAT CZT-imager The Astrophysical Journal Chattopadhyay, T., et al 2019; 884 (2)

    View details for DOI 10.3847/1538-4357/ab40b7

  • Flight Camera Package Design, Calibration, and Performance for the Water Recovery X-ray Rocket Mission Wages, M., Hull, S. V., Falcone, A. D., Anderson, T. B., McQuaide, M., Bray, E., Chattopadhyay, T., Burrows, D. N., Buntic, L., McEntaffer, R. L., Miles, D. M., Tutt, J. H., Schultz, T. B., Donovan, B. D., Hillman, C. R., Yastishock, D., Siegmund, O. H. SPIE-INT SOC OPTICAL ENGINEERING. 2019

    View details for DOI 10.1117/12.2529361

    View details for Web of Science ID 000511172300008

  • US Contributions to the Athena Wide Field Imager Burrows, D. N., Allen, S., Bautz, M., Bulbul, E., Chattopadhyay, T., Erdley, J., Falcone, A. D., Grant, C. E., Herrmann, S., Hornschemeier, A., Kelly, D., Kennea, J., Kraft, R., LaMarr, B., Mantz, A., Miller, E. D., Morrisb, R., Nulsen, P., Pradhan, P., Vulice, N., Wilkins, D., Zugger, M. E., Siegmund, O. H. SPIE-INT SOC OPTICAL ENGINEERING. 2019

    View details for DOI 10.1117/12.2528532

    View details for Web of Science ID 000511172300026

  • Development of position sensitive detector module using scintillator and Si photomultiplier for hard x-ray imaging and spectroscopy JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Goyal, S. K., Naik, A. P., Mithun, N. S., Vadawale, S. V., Nagrani, N., Madhvi, S., Tiwari, N. K., Ladiya, T., Patel, A. R., Adalja, H. K., Chattopadhyay, T., Shanmugam, M., Auknoor, A., Sharma, P., Patel, V. R. 2019; 5 (1)

    View details for DOI 10.1117/1.JATIS.5.1.016001

    View details for Web of Science ID 000463885600010

  • Violation of Synchrotron Line of Death by the Highly Polarized GRB 160802A ASTROPHYSICAL JOURNAL Chand, V., Chattopadhyay, T., Iyyani, S., Basak, R., Aarthy, E., Rao, A. R., Vadawale, S. V., Bhattacharya, D., Bhalerao, V. B. 2018; 862 (2)

    View details for DOI 10.3847/1538-4357/aacd12

    View details for Web of Science ID 000440712300005

  • Characterizing subpixel spatial resolution of a hybrid CMOS detector JOURNAL OF ASTRONOMICAL TELESCOPES INSTRUMENTS AND SYSTEMS Bray, E., Falcone, A., Wages, M., Chattopadhyay, T., Burrows, D. N. 2018; 4 (3)

    View details for DOI 10.1117/1.JATIS.4.3.038002

    View details for Web of Science ID 000451423400009

  • BlackCAT CubeSat: A Soft X-ray Sky Monitor, Transient Finder, and Burst Detector for High-energy and Multimessenger Astrophysics Chattopadhyay, T., Falcone, A. D., Burrows, D. N., Fox, D. B., Palmer, D., DenHerder, J. W., Nikzad, S., Nakazawa, K. SPIE-INT SOC OPTICAL ENGINEERING. 2018

    View details for DOI 10.1117/12.2314274

    View details for Web of Science ID 000452819200139

  • X-ray Hybrid CMOS Detectors: Recent Development and Characterization Progress Chattopadhyay, T., Falcone, A. D., Burrows, D. N., Hull, S., Bray, E., Wages, M., Macquaide, M., Buntic, L., Crum, R., O'Dell, J., Anderson, T., DenHerder, J. W., Nikzad, S., Nakazawa, K. SPIE-INT SOC OPTICAL ENGINEERING. 2018

    View details for DOI 10.1117/12.2312128

    View details for Web of Science ID 000452819200056

  • Phase-resolved X-ray polarimetry of the Crab pulsar with the AstroSat CZT Imager NATURE ASTRONOMY Vadawale, S. V., Chattopadhyay, T., Mithun, N. S., Rao, A. R., Bhattacharya, D., Vibhute, A., Bhalerao, V. B., Dewangan, G. C., Misra, R., Paul, B., Basu, A., Joshi, B. C., Sreekumar, S., Samuel, E., Priya, P., Vinod, P., Seetha, S. 2018; 2 (1): 50–55

    View details for DOI 10.1038/s41550-017-0293-z

    View details for Web of Science ID 000423480900020

  • Surprise in simplicity: an unusual spectral evolution of a single pulse GRB 151006A MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Basak, R., Iyyani, S., Chand, V., Chattopadhyay, T., Bhattacharya, D., Rao, A. R., Vadawale, S. V. 2017; 472 (1): 891–903

    View details for DOI 10.1093/mnras/stx1970

    View details for Web of Science ID 000413765800073

  • Recent X-ray hybrid CMOS detector developments and measurements Hull, S. V., Falcone, A. D., Burrows, D. N., Wages, M., Chattopadhyay, T., McQuaide, M., Bray, E., Kern, M., Siegmund, O. H. SPIE-INT SOC OPTICAL ENGINEERING. 2017

    View details for DOI 10.1117/12.2273903

    View details for Web of Science ID 000417112900003

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    View details for Web of Science ID 000400504900018

  • Development of a hard x-ray focal plane compton polarimeter: a compact polarimetric configuration with scintillators and Si photomultipliers EXPERIMENTAL ASTRONOMY Chattopadhyay, T., Vadawale, S. V., Goyal, S. K., Mithun, N. S., Patel, A. R., Shukla, R., Ladiya, T., Shanmugam, M., Patel, V. R., Ubale, G. P. 2016; 41 (1-2): 197–214

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    View details for Web of Science ID 000387731500038

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    View details for DOI 10.1051/0004-6361/201525686

    View details for Web of Science ID 000357502600085

  • Prospects of hard X-ray polarimetry with Astrosat-CZTI EXPERIMENTAL ASTRONOMY Chattopadhyay, T., Vadawale, S. V., Rao, A. R., Sreekumar, S., Bhattacharya, D. 2014; 37 (3): 555–77

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    View details for Web of Science ID 000344585700005

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    View details for Web of Science ID 000339232600012

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  • Prospects of Hard X-ray Polarimetry with Astrosat-CZTI Vadawale, S. V., Chattopadhyay, T., Rao, A. R., IEEE IEEE. 2013

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  • A conceptual design of hard x-ray focal plane detector for simultaneous x-ray polarimetric, spectroscopic and timing measurements Vadawale, S. V., Chattopadhyay, T., Pendharkar, J., Takahashi, T., Murray, S. S., DenHerder, J. W. SPIE-INT SOC OPTICAL ENGINEERING. 2012

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    View details for Web of Science ID 000312391600133

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