BHARAT SINGH RAWAT, Ph.D.
// ION SOURCE & BEAM DIAGNOSTICS EXPERT
Expert in manipulating charged particle beams with 7+ years of experience in the design of ion sources, beam extraction/transport systems, and digital twins.
PROJECT_DT
PY-BEMCS
[ 01: EMPLOYMENT HISTORY ]
Lead Developer / Independent Researcher | PY-BEMCS
03/2026 — Present
- Developing PY-BEMCS, a Python multiphysics suite for simulating ion-beam extraction and Monte Carlo Collision (MCC) physics in ion sources / thrusters and fusion Neutral Beam Injectors (NBI).
- Developed a self-consistent Poisson solver integrating Bohm-criterion-based extraction.
- Implemented dynamic sputter erosion and structural failure logic using probabilistic Charge-Exchange (CEX) scattering and in-situ mesh erosion to predict grid End-of-Life (EOL).
- Integrated a modular backend coupling thermal heat maps with secondary electron emission (SEE) and RF-based co-extraction models.
- Built a GUI + DAQ system with real-time visualization of plasma meniscus, damage maps, electron backstreaming potential and beam divergence.
Research Associate | University of Liverpool / Cockcroft Institute / CERN
2023 — 2026
- Led ballistic antiproton transport optimization during the annual shutdown using a 3D CST Penning Trap model — validated the new Positronium target design and identified settings to achieve antiproton velocities below 2000 m/s.
- Carried out simulation studies on the Rotating Wall trap of the AEgIS apparatus to identify the optimal frequency for trapping antiprotons.
- Developed Reduced Order Models (ROMs) for a Digital Twin of the Penning–Malmberg trap, integrating first-principles physics with ML to predict trap behaviour and optimize particle confinement.
- Executed on-shift responsibilities during beam time, including real-time DAQ and management of cryogenic systems for superconducting magnets.
Radiation Protection Engineer | Nuvia India Pvt Limited
2018 — 2018
- Managed occupational radiation exposure at Kakrapar Atomic Power Station, ensuring strict adherence to weekly, monthly and annual regulatory dose limits.
- Developed an automated dose-tracking spreadsheet to monitor exposure trends and identify personnel approaching threshold limits, enabling proactive safety interventions.
[ 02: RESEARCH & EDUCATION ]
Ph.D. | Homi Bhabha National Institute / Institute for Plasma Research
2018 — 2024
- Designed, developed and characterised a ring cusp ion source for space propulsion and fusion research, producing Ar⁺ beams at 1–2 keV / up to 100 mA with an average 0.23 mA per aperture.
- Engineered a nine-channel Parallel Wire Array (PWA) and a Faraday Cup Array (FCA) for real-time, in-situ ion-beam profile monitoring.
- Investigated space-charge neutralisation using a hot-filament cathode, achieving up to 100% degree of neutralisation.
- Used CST Studio for magnetic cusp optimisation and OPERA-3D for ion-optics design — achieved a low beam divergence of 6.5°; transient thermo-structural ANSYS analysis limited grid thermal deformation to <0.1 mm.
M.Tech. Nuclear Engineering | Pandit Deendayal Petroleum University
2015 — 2017
- Developed a 10 kW Faraday Cup for 20–30 mA beam currents — a major upgrade over the legacy 1 kW / 500 µA system.
- Engineered a water-cooling system holding peak temperature to 350.6 °C, well below copper's 1085 °C melting point.
- Determined optimal suppression voltage of −450 to −500 V via SIMION 8.0 and LORENTZ particle tracking.
- Optimised a 30° cone geometry, reducing total secondary electron yield by a factor of 1.15 compared to larger angles.
B.E. Mechanical Engineering | Gujarat Technological University
2009 — 2013
- Thesis — Long Chain Beamer braking system: showed cast iron in place of hardened mild steel reduced per-stop temperature rise by 1.39 °C, improving safety for heat-sensitive cotton.
- Project — Ice-cream cup packaging machine: diagnosed mechanical misalignments and recovered output from 9,600 → 11,200 cups/hr, restoring near-design capacity.
[ 03: PUBLICATIONS ]
Instruments (2026): Characterization of the extraction system of supersonic gas curtain-based ionization profile monitor for flash proton therapy.
IBIC (2025): Design studies of a Retarding Potential Energy Analyser (RPEA) for low energy antimatter experiments.
Instruments (2025): Faraday cups: principles, designs, and applications across scientific disciplines—a review.
EXA-LEAP (2025): 3D simulation studies of mixed plasma confinement at AEgIS.
Phys. Rev. Lett. (2024): Positronium Laser Cooling via the 1³S-2³P Transition with a Broadband Laser Pulse.
HBNI Ph.D. Dissertation (2024): Studies on Extraction of an Ion beam and its Transport from a Multi-Cusp Gridded Ion Source.
IPAC (2024): Simulation studies for the confinement of antiprotons for the AEgIS experiment.
IEEE TPS (2023): Experimental Studies on the Roles of Space Charge Neutralization in a Ring Cusp Ion Source.
AIP Advances (2022): Measurement system for ion beam profiles using fixed parallel wires and Faraday cup array.
IEEE TPS (2021): Characterization of a Multicusp Ion Source with Two-Grid Extraction System for Studying Extraction and Transport of Ion Beam.
ICONE25 (2017): Design and simulation of 10kW Faraday cup for ion beam current.
[ 04: PRESENTATION & TALKS ]
Invited talk: "Design tutorial on FC design for low energy antimatter research using CST studio" CST User day, 2025, Nottingham, UK.
Contributed talk: "Digital Twin-Enabled Modeling of Antimatter Beam Control" EuPRAXIA-DN, 2025, Lisbon, Portugal.
Contributed talk: "Trapping Antiprotons: Modeling Penning-Malmberg Traps for AEgIS" SIMULIA RUM, 2025, Manchester, UK.
Contributed talk: "Design and Simulation of 10 kW Faraday Cup" ICONE25, 2017, Shanghai, China.
[ 05: HOBBIES ]
♟ CHESS
🌍 LANGUAGES
🎵 INSTRUMENTS
✈️ TRAVELING
// WAITING_FOR_BEAM_PROBE...
[ 06: SOFTWARE STACK & EXPERTISE ]
Languages: English (fluent), Hindi & Gujarati (native), Spanish (B2), Russian (A1).
Coding: Python, MATLAB, C++.
Particle & Field Solvers: CST Studio (Particle Tracking, ES/EM-PIC), OPERA-3D, SIMION, IBISIMU, COMSOL, RF Track, ASTRA, MAD-X, Geant4, G4Beamline, BDSIM, TAICHI, PY-BEMCS (developer).
CAD / Multiphysics: SolidWorks, ANSYS (Thermal / Structural / CFD).
Outreach: Designed interactive web games for antimatter physics outreach; ran live superconductivity / magnetic-levitation demonstrations.
Teaching & Misc.: Co-instructor — Introduction to Beam Diagnostics; HPC computing; doctoral-student supervision.
Core expertise: Ion source design, beam extraction & transport optimisation, space-charge neutralisation, advanced beam diagnostics, digital twins for charged-particle traps.