Amitava Roy

About

Amitava Roy received the B.Sc. degree (Hons.) in physics from the University of North Bengal, Siliguri, India, in 1995, the M.Sc. degree in physics from Jawaharlal Nehru University, New Delhi, India, in 1997, and the Ph.D. degree from the Homi Bhabha National Institute (HBNI), Mumbai, India, in 2012. He graduated from the Training School, Bhabha Atomic Research Centre (BARC), Mumbai, in 1998.
Since 1998, he has been with the Accelerator and Pulse Power Division, BARC, where he is currently a Scientific Officer (G) and Head of Microwave and X-rays Section, APPD. He is also holding the position of Associate Professor, Physical Sciences, HBNI. He has authored over 90 scientific publications/presentations in international/national journals/conferences. His research interests include intense relativistic electron beam generation and applications, generation of high-power microwaves and flash X-ray, particle accelerators, and pulsed-power technology.
Dr. Roy has received a university medal for scoring the second position in the B.Sc. examination. In 2013, he received the Post-Doctoral Fellowship from the Institute of Physics of the Czech Academy of Sciences, Prague, Czech Republic, for two years to work on EUV generation from Laser Produced Plasma.

Employment

• Institute of Physics ASCR, v. v. i. (FZU) Postdoctoral Researcher
  2013 - 2015
• European Organization for Nuclear Research CERN India Collaborator
  2004 - 2005
• Bhabha Atomic Research Centre Scientific Officer F
  1998 - Present

Education

• Homi Bhabha National Institute PhD
  2008 - 2012
• Bhabha Atomic Research Centre Training in Nuclear Science and Engineering
  1997 - 1998
• Jawaharlal Nehru University M.Sc (physics)
  1995 - 1997

Projects & Funding

Projects & funding information is unavailable.

Publications (19)

• Design of Half Impulse Radiating Antenna (HIRA) With Tapered Transverse Electromagnetic (TEM) Horn–Based Novel Feeding Mechanism for Intentional Electromagnetic Interference (IEMI) Applications
  International Journal of Antennas and Propagation 2026 DOI: 10.1155/ijap/1770541
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• Enhancing Vircator Efficiency Using Tapered Reflectors With Increasing Interreflector Distance
  International Journal of RF and Microwave Computer-Aided Engineering 2026 DOI: 10.1155/mmce/3650859
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• Design and Theoretical Modeling of a Two-Section X-Band BWO With Intermediate Drift Space for Efficient Low Magnetic Field Operation
  IEEE Transactions on Plasma Science 2026 DOI: 10.1109/TPS.2025.3646220
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• High-Efficiency L-Band MILO With Modulation and Dual Extractor Cavity
  IEEE Transactions on Plasma Science 2026 DOI: 10.1109/TPS.2026.3678346
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• Impact of Parasitic Elements in Low-Energy Marx Generators
  IEEE Transactions on Plasma Science 2026 DOI: 10.1109/TPS.2026.3659904
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• Development of Novel Solid State MARX Generator
  Review of Scientific Instruments 2026 DOI: 10.1063/5.0321641
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• Subgigawatt Level X‐Band BWO Using Adiabatically Tapered SWS at Low Magnetic Field
  International Journal of RF and Microwave Computer-Aided Engineering 2025 DOI: 10.1155/mmce/9618627
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• Improvement of Electron Gun Breakdown Performance Through Surface Flashover and Discharge Studies
  IEEE Transactions on Electron Devices 2023 DOI: 10.1109/TED.2023.3273513
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• Optimization of Spatial Parameters of a 2.45-GHz Atmospheric Pressure Cold Plasma Jet: Comparison Between Multiphysics Simulation and Experimental Results
  IEEE Transactions on Plasma Science 2022 DOI: 10.1109/TPS.2022.3206997
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• Design Study of a High-Permeability Core-Based Ultra-Compact Tesla Transformer
  IEEE Transactions on Plasma Science 2022 DOI: 10.1109/TPS.2022.3187754
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