Dr. Tanmoy Chattopadhyay
Staff Research Scientist at Stanford University
SPIE Involvement:
Author
Area of Expertise:
X-ray astronomical instrumentation , X-ray polarimetry , X-ray CCDs , Accreting black holes , Gamma Ray Bursts
Profile Summary

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 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.
Publications (38)

Proceedings Article | 27 August 2024 Poster + Paper
Haley Stueber, Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel, Tsion Gebre, Aanand Joshi, Steven Allen, Glenn Morris, Artem Poliszczuk
Proceedings Volume 13103, 131031D (2024) https://doi.org/10.1117/12.3017691
KEYWORDS: Sensors, X-rays, Vacuum chambers, CCD image sensors, Copper, Aluminum, Potassium, X-ray sources, Vacuum, X-ray detectors

Proceedings Article | 27 August 2024 Presentation + Paper
Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel, Kevan Donlon, Steven Allen, Marshall Bautz, Brianna Cantrall, Michael Cooper, Beverly LaMarr, Christopher Leitz, Eric Miller, Glenn Morris, Abigail Pan, Gregory Prigozhin, Ilya Prigozhin, Haley Stueber, Daniel Wilkins
Proceedings Volume 13103, 1310312 (2024) https://doi.org/10.1117/12.3020855
KEYWORDS: Sensors, Charge-coupled devices, X-rays, Transistors, CCD image sensors, X-ray detectors, X-ray astronomy, Vacuum chambers, Field effect transistors

Proceedings Article | 27 August 2024 Presentation + Paper
Peter Orel, Abigail Pan, Sven Herrmann, Tanmoy Chattopadhyay, Glenn Morris, Haley Stueber, Steven Allen, Daniel Wilkins, Gregory Prigozhin, Beverly LaMarr, Richard Foster, Andrew Malonis, Marshall Bautz, Michael Cooper, Kevan Donlon
Proceedings Volume 13103, 131030J (2024) https://doi.org/10.1117/12.3019147
KEYWORDS: Sensors, Charge-coupled devices, Analog electronics, X-rays, Analog to digital converters, CCD image sensors, Power consumption, X-ray imaging, Prototyping, Iron

Proceedings Article | 27 August 2024 Poster + Paper
Sven Herrmann, Peter Orel, Tanmoy Chattopadhyay, Glenn Morris, Gregory Prigozhin, Haley Stueber, Steven Allen, Marshall Bautz, Kevan Donlon, Beverly LaMarr, Chris Leitz, Eric Miller, Abigail Pan, Artem Poliszczuk, Daniel Wilkins
Proceedings Volume 13103, 131031H (2024) https://doi.org/10.1117/12.3018198
KEYWORDS: X-rays, Charge-coupled devices, Sensors, CCD image sensors, Field effect transistors, Signal processing, X-ray imaging, Imaging systems, X-ray detectors, Analog electronics

Proceedings Article | 27 August 2024 Presentation + Paper
K. Donlon, S. Allen, M. Bautz, T. Chattopadhyay, M. Cooper, R. Foster, S. Herrmann, B. LaMarr, C. Leitz, A. Malonis, E. Miller, P. Orel, G. Prigozhin, I. Prigozhin, D. Young
Proceedings Volume 13103, 1310317 (2024) https://doi.org/10.1117/12.3020459
KEYWORDS: Charge-coupled devices, Transistors, Design, Capacitance, Astrophysics, Field effect transistors, Fabrication, Electrical conductivity, X-rays, X-ray imaging

Proceedings Article | 21 August 2024 Presentation + Paper
D. Wilkins, A. Poliszczuk, B. Schneider, E. Miller, S. Allen, M. Bautz, T. Chattopadhyay, A. Falcone, R. Foster, C. Grant, S. Herrmann, R. Kraft, R. Morris, P. Nulsen, P. Orel, G. Schellenberger
Proceedings Volume 13093, 130931R (2024) https://doi.org/10.1117/12.3019396
KEYWORDS: X-rays, Sensors, X-ray detectors, Artificial intelligence, Detection and tracking algorithms, X-ray astronomy, Background noise, CCD image sensors, Machine learning, Neural networks

Proceedings Article | 21 August 2024 Presentation + Paper
Artem Poliszczuk, Dan Wilkins, Steven Allen, Eric Miller, Tanmoy Chattopadhyay, Benjamin Schneider, Julien Eric Darve, Marshall Bautz, Abe Falcone, Richard Foster, Catherine Grant, Sven Herrmann, Ralph Kraft, R. Glenn Morris, Paul Nulsen, Peter Orel, Gerrit Schellenberger, Haley Stueber
Proceedings Volume 13093, 130931T (2024) https://doi.org/10.1117/12.3020598
KEYWORDS: Deep learning, Astronomical instrumentation, X-ray telescopes, X-ray detectors, X-ray imaging, X-rays, Machine learning, Random forests

Proceedings Article | 21 August 2024 Presentation + Paper
Marshall Bautz, Eric Miller, Gregory Prigozhin, Beverly LaMarr, Andrew Malonis, Richard Foster, Catherine Grant, Benjamin Schneider, Christopher Leitz, Kevan Donlon, Ilya Prigozhin, Renee Lambert, Michael Cooper, Sven Herrmann, Peter Orel, Tanmoy Chattopadhyay, R. Glenn Morris, Daniel Wilkins, Haley Stueber, Artem Poliszczuk, Steven Allen
Proceedings Volume 13093, 130931Q (2024) https://doi.org/10.1117/12.3019193
KEYWORDS: X-rays, X-ray technology, X-ray imaging, Astrophysics, Spectral resolution, Sensors, Charge-coupled devices, CCD image sensors, Observatories

SPIE Journal Paper | 8 January 2024
Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel, Kevan Donlon, Gregory Prigozhin, Glenn Morris, Michael Cooper, Beverly LaMarr, Andrew Malonis, Steven Allen, Marshall Bautz, Chris Leitz
JATIS, Vol. 10, Issue 01, 016004, (January 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.016004
KEYWORDS: Nondestructive evaluation, Charge-coupled devices, X-rays, Transistors, Sensors, X-ray detectors, Interference (communication), Dark current, CCD image sensors, Silicon

Proceedings Article | 5 October 2023 Presentation + Paper
Eric Miller, Marshall Bautz, Catherine Grant, Richard Foster, Beverly LaMarr, Andrew Malonis, Gregory Prigozhin, Benjamin Schneider, Christopher Leitz, Sven Herrmann, Steven Allen, Tanmoy Chattopadhyay, Peter Orel, Glenn Morris, Haley Stueber, Abraham Falcone, Andrew Ptak, Christopher Reynolds
Proceedings Volume 12678, 1267816 (2023) https://doi.org/10.1117/12.2676838
KEYWORDS: Charge-coupled devices, X-rays, Cameras, Design and modelling, Spectral response, Simulations, Astrophysics

Proceedings Article | 4 October 2023 Presentation + Paper
Artem Poliszczuk, Dan Wilkins, Steven Allen, Eric Miller, Tanmoy Chattopadhyay, Marshall Bautz, Julien Eric Darve, Richard Foster, Catherine Grant, Sven Herrmann, Ralph Kraft, R. Glenn Morris, Peter Orel, Arnab Sarkar, Benjamin Schneider
Proceedings Volume 12675, 126750C (2023) https://doi.org/10.1117/12.2677095
KEYWORDS: Machine learning, X-rays, Particles, Data modeling, Image segmentation, X-ray imaging, X-ray astronomy, X-ray detectors

SPIE Journal Paper | 15 May 2023
Tanmoy Chattopadhyay, Sven Herrmann, Matthew Kaplan, Peter Orel, Kevan Donlon, Gregory Prigozhin, Glenn Morris, Michael Cooper, Andrew Malonis, Steven Allen, Marshall Bautz, Chris Leitz
JATIS, Vol. 9, Issue 02, 026001, (May 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.2.026001
KEYWORDS: Tunable filters, Transistors, Digital filtering, X-rays, Interference (communication), Cadmium sulfide, Electronic filtering, Charge-coupled devices, X-ray detectors, Quantum reading

SPIE Journal Paper | 14 September 2022
C. S. Vaishnava, N. P. S. Mithun, Santosh Vadawale, Esakkiappan Aarthy, Arpit Patel, Hiteshkumar Adalja, Neeraj Kumar Tiwari, Tinkal Ladiya, Nilam Navale, Tanmoy Chattopadhyay, A. R. Rao, Varun Bhalerao, Dipankar Bhattacharya
JATIS, Vol. 8, Issue 03, 038005, (September 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.3.038005
KEYWORDS: Sensors, Polarization, Polarimetry, X-rays, Modulation, Photons, Cadmium, Zinc, Scattering, Imaging systems

Proceedings Article | 31 August 2022 Presentation + Paper
M. Bautz, R. Foster, C. Grant, B. LaMarr, A. Malonis, E. Miller, G. Prigozhin, B. Burke, M. Cooper, K. Donlon, R. Lambert, K. Warner, D. Young, T. Chattopadhyay, S. Herrmann, R. Morris, C. Leitz, S. Allen
Proceedings Volume 12181, 121812A (2022) https://doi.org/10.1117/12.2630139
KEYWORDS: Sensors, X-rays, Charge-coupled devices, CCD image sensors, Spectral resolution, Amplifiers, Observatories, X-ray imaging

Proceedings Article | 31 August 2022 Poster + Paper
D. Wilkins, S. Allen, E. Miller, M. Bautz, T. Chattopadhyay, R. Foster, C. Grant, S. Herrmann, R. Kraft, R. G. Morris, P. Nulsen, G. Schellenberger
Proceedings Volume 12181, 121816S (2022) https://doi.org/10.1117/12.2629496
KEYWORDS: X-rays, Sensors, Evolutionary algorithms, Detection and tracking algorithms, X-ray detectors, Particles, Machine learning, X-ray imaging, Algorithm development, Image sensors

Proceedings Article | 29 August 2022 Poster + Paper
Peter Orel, Sven Herrmann, Tanmoy Chattopadhyay, Glenn Morris, Steven Allen, Gregory Prigozhin, Richard Foster, Andrew Malonis, Marshall Bautz, Michael Cooper, Kevan Donlon
Proceedings Volume 12191, 1219124 (2022) https://doi.org/10.1117/12.2629049
KEYWORDS: Charge-coupled devices, Analog electronics, X-rays, Sensors, Prototyping, Amplifiers, Digital electronics, X-ray technology, X-ray imaging, Transistors

Proceedings Article | 29 August 2022 Presentation + Paper
Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel, R. Morris, Daniel Wilkins, Steven Allen, Gregory Prigozhin, Beverly LaMarr, Andrew Malonis, Richard Foster, Marshall Bautz, Kevan Donlon, Michael Cooper, Christopher Leitz
Proceedings Volume 12191, 121910W (2022) https://doi.org/10.1117/12.2629050
KEYWORDS: Charge-coupled devices, X-rays, Sensors, Transistors, Digital filtering, X-ray detectors, X-ray technology

Proceedings Article | 29 August 2022 Presentation + Paper
S. Herrmann, P. Orel, T. Chattopadhyay, R. Morris, G. Prigozhin, K. Donlon, R. Foster, M. Bautz, S. Allen, C. Leitz
Proceedings Volume 12191, 1219117 (2022) https://doi.org/10.1117/12.2630195
KEYWORDS: Charge-coupled devices, Transistors, X-rays, Sensors, Electronics, Capacitance, Field effect transistors, Analog electronics, Digital signal processing, Detector development, X-ray astronomy

SPIE Journal Paper | 26 May 2022
JATIS, Vol. 8, Issue 02, 026006, (May 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.026006
KEYWORDS: Sensors, Transistors, Charge-coupled devices, Amplifiers, X-ray detectors, X-rays, Prototyping, Analog electronics, Field effect transistors, Clocks

SPIE Journal Paper | 24 May 2022
Tanmoy Chattopadhyay, Sven Herrmann, Peter Orel, R. Glenn Morris, Gregory Prigozhin, Andrew Malonis, Richard Foster, David Craig, Barry Burke, Steven Allen, Marshall Bautz
JATIS, Vol. 8, Issue 02, 026005, (May 2022) https://doi.org/10.1117/12.10.1117/1.JATIS.8.2.026005
KEYWORDS: Charge-coupled devices, X-rays, Sensors, Clocks, Amplifiers, Roentgenium, X-ray detectors, X-ray astronomy, X-ray technology, Cadmium sulfide

Proceedings Article | 13 December 2020 Poster + Paper
Tanmoy Chattopadhyay, Sven Herrmann, Steven Allen, Jack Hirschman, Glenn Morris, Marshall Bautz, Andrew Malonis, Richard Foster, Gregory Prigozhin, Dave Craig, Barry Burke
Proceedings Volume 11454, 1145423 (2020) https://doi.org/10.1117/12.2561826
KEYWORDS: Charge-coupled devices, X-rays, Sensors, X-ray imaging, Image sensors, X-ray astronomy, Astronomy, Spatial resolution, Cameras, Device simulation

Proceedings Article | 13 December 2020 Presentation + Paper
D. Wilkins, S. Allen, E. Miller, M. Bautz, T. Chattopadhyay, S. Fort, C. Grant, S. Herrmann, R. Kraft, R. G. Morris, P. Nulsen
Proceedings Volume 11444, 114442O (2020) https://doi.org/10.1117/12.2562354
KEYWORDS: X-rays, Sensors, Particles, X-ray detectors, Detection and tracking algorithms, X-ray imaging, Neural networks, Signal detection, Space operations

Proceedings Article | 13 December 2020 Poster + Presentation + Paper
M. Bautz, B. Burke, M. Cooper, D. Craig, K. Donlon, R. Foster, C. E. Grant, B. LaMarr, C. Leitz, A. Malonis, E. Miller, G. Prigozhin, C. Thayer, S. Allen, S. Herrmann, T. Chattopadhyay, R. G. Morris
Proceedings Volume 11444, 1144494 (2020) https://doi.org/10.1117/12.2561441
KEYWORDS: Charge-coupled devices, Signal processing, High energy astrophysics, Sensors, X-rays, Clocks, X-ray detectors, X-ray imaging, Image sensors, Sensor performance

Proceedings Article | 13 December 2020 Poster + Paper
Sven Herrmann, Josephine Wong, Tanmoy Chattopadhyay, R. Glenn Morris, Barry Burke, Gregory Prigozhin, Mike Cooper, David Craig, Kevan Donlon, Richard Foster, Andrew Malonis, Mark Bautz, Steve Allen
Proceedings Volume 11454, 1145427 (2020) https://doi.org/10.1117/12.2561741
KEYWORDS: Charge-coupled devices, Sensors, X-ray detectors, X-rays, Observatories, Electronics, CCD image sensors, Earth observing sensors, Satellites, X-ray imaging

SPIE Journal Paper | 29 October 2019 Open Access
JATIS, Vol. 5, Issue 04, 044006, (October 2019) https://doi.org/10.1117/12.10.1117/1.JATIS.5.4.044006
KEYWORDS: X-rays, Rockets, Diffraction gratings, Sensors, Spectroscopy, Calibration, X-ray detectors, Diffraction, Mirrors, X-ray technology

Proceedings Article | 9 September 2019 Presentation + Paper
Proceedings Volume 11118, 111180D (2019) https://doi.org/10.1117/12.2529361
KEYWORDS: Cameras, Calibration, Rockets, X-ray imaging, X-rays, Silicon, X-ray diffraction, X-ray detectors, CMOS sensors, Spectroscopy

Proceedings Article | 9 September 2019 Paper
David Burrows, Steve Allen, Marshall Bautz, Esra Bulbul, Tanmoy Chattopadhyay, Julia Erdley, Abraham Falcone, Catherine Grant, Sven Herrmann, Ann Hornschemeier, Doug Kelly, Jamie Kennea, Ralph Kraft, Beverly LaMarr, Adam Mantz, Eric Miller, R. Glenn Morris, Paul Nulsen, Pragati Pradhan, Neven Vulic, Dan Wilkins, Michael Zugger
Proceedings Volume 11118, 111180Z (2019) https://doi.org/10.1117/12.2528532
KEYWORDS: Scanning probe microscopy, Image processing, Target detection, Software development, Algorithm development, Imaging systems, X-rays, X-ray sources

SPIE Journal Paper | 27 December 2018
Shiv K. Goyal, Amisha Naik, Neelakandan P. S. Mithun, Santosh Vadawale, Navin Nagrani, Shreya Madhvi, Neeraj K. Tiwari, Tinkal Ladiya, Arpit Patel, Hitesh K. Adalja, Tanmoy Chattopadhyay, Munuswamy Shanmugam, Amogh Auknoor, Piyush Sharma, Vishnu Patel
JATIS, Vol. 5, Issue 01, 016001, (December 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.5.1.016001
KEYWORDS: Sensors, Scintillators, Photons, Thallium, X-rays, Scintillation, Crystals, Spatial resolution, Detector development, Imaging spectroscopy

SPIE Journal Paper | 14 August 2018
JATIS, Vol. 4, Issue 03, 038002, (August 2018) https://doi.org/10.1117/12.10.1117/1.JATIS.4.3.038002
KEYWORDS: X-rays, Sensors, Spatial resolution, CMOS sensors, X-ray detectors, Aluminum, Monte Carlo methods, Electrons, Clouds, Copper

Proceedings Article | 6 July 2018 Paper
Proceedings Volume 10699, 106995S (2018) https://doi.org/10.1117/12.2314274
KEYWORDS: Imaging systems, CMOS sensors, X-rays, X-ray detectors, X-ray imaging, Sensors, Electromagnetism, Detector development

Proceedings Article | 6 July 2018 Presentation + Paper
Proceedings Volume 10699, 106992E (2018) https://doi.org/10.1117/12.2312128
KEYWORDS: Sensors, X-rays, X-ray detectors, CMOS sensors, Cameras, Charge-coupled devices, Rockets, Calibration, X-ray astronomy, X-ray characterization

Proceedings Article | 19 September 2017 Presentation
Tanmoy Chattopadhyay, Mitchell Wages, David Burrows, Evan Bray, Adolf Inneman, Rene Hudec, Veronika Stehlikova, David Schendt, Sam Hull, Abe Falcone, Maria Mcquaide
Proceedings Volume 10399, 103991P (2017) https://doi.org/10.1117/12.2274647
KEYWORDS: X-rays, CMOS sensors, X-ray optics, Hybrid optics, X-ray imaging, X-ray detectors, X-ray characterization, Ray tracing, Imaging systems, Spatial resolution

Proceedings Article | 29 August 2017 Presentation + Paper
S. K. Goyal, Amisha Naik, Mithun N. P. S., S. Vadawale, Neeraj Tiwari, T. Chattopadhyay, N. Nagrani, S. Madhavi, T. Ladiya, A. Patel, M. Shanmugam, H. Adalja, V. Patel, G. Ubale
Proceedings Volume 10392, 1039205 (2017) https://doi.org/10.1117/12.2275316
KEYWORDS: Scintillators, Photodetectors, Imaging spectroscopy, Detector development, Sensors, Hard x-rays, Silicon photomultipliers, Avalanche photodiodes, Optical amplifiers, Avalanche photodetectors

Proceedings Article | 29 August 2017 Paper
Proceedings Volume 10397, 1039704 (2017) https://doi.org/10.1117/12.2273903
KEYWORDS: X-ray detectors, X-rays, CMOS sensors, Sensors, Rockets, Titanium, X-ray technology, Detector development, Optical sensors, X-ray imaging

Proceedings Article | 29 August 2017 Presentation + Paper
Proceedings Volume 10397, 103970R (2017) https://doi.org/10.1117/12.2274249
KEYWORDS: X-rays, Rockets, Imaging spectroscopy, Spectroscopy, Collimators, CMOS sensors, Signal to noise ratio, Extreme ultraviolet, X-ray imaging, Spectroscopes

Proceedings Article | 18 July 2016 Paper
Santosh Vadawale, A. R. Rao, Dipankar Bhattacharya, Varun Bhalerao, Gulab Dewangan, Ajay Vibhute, Mithun N. P. S., Tanmoy Chattopadhyay, S. Sreekumar
Proceedings Volume 9905, 99051G (2016) https://doi.org/10.1117/12.2235373
KEYWORDS: Sensors, Hard x-rays, Imaging spectroscopy, Imaging systems, Satellites, Calibration, Particles, Algorithm development, Photovoltaics, Polarimetry

Proceedings Article | 18 July 2016 Paper
T. Chattopadhyay, S. Vadawale, A. R. Rao, D. Bhattacharya, Mithun N. P. S., V. Bhalerao
Proceedings Volume 9905, 99054D (2016) https://doi.org/10.1117/12.2234805
KEYWORDS: Sensors, Modeling, Sensors, Modeling, X-ray astronomy, X-rays, Hard x-rays, Astronomy, Clouds, Electrons, Crystals, Compton scattering

Proceedings Article | 17 September 2012 Paper
S. Vadawale, T. Chattopadhyay, J. Pendharkar
Proceedings Volume 8443, 84434P (2012) https://doi.org/10.1117/12.935295
KEYWORDS: Silicon, Polarimetry, Sensors, Scintillators, X-rays, Hard x-rays, Polarization, Modulation, X-ray detectors, Spectroscopes

Showing 5 of 38 publications
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