International Journal of Electronics and Computer Applications

Volume: 1 Issue: 2

  • Open Access
  • Original Article

3-D Electromagnetic Simulations for Electron Beam Positioning

Vanya Goel1∗, Amitava Roy2, Namita Maiti3

1 Assistant Professor, KIET Group of Institutions, Delhi-NCR, India.
2 Scientific Officer-G, Homi Bhabha National Institute, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India.
3 Retd. Scientific Officer-H, Homi Bhabha National Institute, Bhabha Atomic Research Centre, Mumbai, Maharashtra, India.

*Corresponding author email: [email protected]
 

Year: 2024, Page: 45-49, Doi: https://doi.org/10.70968/ijeaca.v1i2.6

Received: Sept. 2, 2024 Accepted: Nov. 18, 2024 Published: Dec. 12, 2024

Abstract

In this paper, 3-D simulations have been carried out to position electron beam of high-power (60 kW, 60 kV, 1 A) linear electron gun. These simulations are highly significant for indirectly heated electron guns due to the presence of an additional electrode. In the inter-electrode space, particle trajectories, effective electron beam cross-section bombardment at solid cathode and electron beam emittance are crucial beam characteristics. Detailed 3-D electrostatic, electromagnetic and particle tracking simulations in inter-electrode region as well as in post-anode region have been successfully done for two parametric variations of electron gun. These include 1) Filament-solid cathode interspacing: Interelectrode region and 2) Magnetic coil current and corresponding magnetic field: Post-anode region. CST Studio Particle Tracking Module simulation software has been used, employing adaptive mesh refinement for fine meshing to ensure high accuracy results.

Keywords: 3-D Electromagnetic Simulations for Electron Beam Positioning

References

  1. Schiller S, Heisig U, Panzer S. Electron Beam Technology. (pp. 1-508) New York. John Wiley & Sons. 1982.

  2. Maiti N, Bade A, Tembhare GU, Patil D, Dasgupta K. Design and development of improved indirectly heated cathode based strip electron gun”. Review of Scientific Instruments. 2015;86(2). Available from: https://doi.org/10.1063/1.4909535

  3. Abramyan EA, Ligachev AE. Applications of intense electron beam for the processing of materials”. International Journal of Radiation Applications and Instrumentation. Part C. Radiation Physics and Chemistry. 1988;31(4-6):829–841. Available from: https://doi.org/10.1016/1359-0197(88)90265-2

  4. David J, Ives R, Tran H, Bui T, Read ME. Computer Optimized Design of Electron Guns. IEEE Transactions on Plasma Science . 2008;36(1):156–168. Available from: https://doi.org/10.1109/TPS.2007.913884

  5. Lewis BM, Tran HT, Read ME, Ives RL. Design of an Electron Gun Using Computer Optimization. IEEE Transactions on Plasma Science. 2004;32(3):1242 –1250. Available from: https://doi.org/10.1109/TPS.2004.827572

  6. Palacios-Serrano G, Hannon F, Hernandez-Garcia C, Poelker M, Baumgart H. Electrostatic design and conditioning of a triple point junction shield for a -200 kV DC high voltage photogun. Review of Scientific Instruments. 2018;89(10). Available from: https://doi.org/10.1063/1.5048700

  7. Nishimorl N, Nagai R, Matsuba S, Hajima R, Yamamoto M, Honda Y, et al. Experimental investigation of an optimum configuration for a high-voltage photoemission gun for operation at ≥ 500 kV”. Physical Review Accelerators and Beams. 2014;17(5):1–17. Available from: https://doi.org/10.1103/PhysRevSTAB.17.053401

  8. Wang P, Dong Q, Wu G, Liu J, Li W. Practical design of triple junction for a 90 kV electron gun. IEEE Transactions on Dielectrics and Electrical Insulation. 2019;26(4):1043–1047. Available from: https://doi.org/10.1109/TDEI.2019.007818

  9. Gallagher HE. The Design and Performance of Grid-Controlled High Perveance Electron Guns. IRE Transactions on Electron Devices. 1959;6(4):390–396. Available from: https://doi.org/10.1109/T-ED.1959.14569

  10. Pierce JR. Theory and design of electron beams. (pp. 173-193) New York, N. Y.. D. Van Nostrand Co., Inc. 1954.

  11. CST STUDIO SUITE-Charged Particle Simulation. Dassault Systèmes Simulia Corp, Vélizy-Villacoublay, France. Available from: https://space.mit.edu/RADIO/Documentation/CST%20Studio%20Suite%20-%20Charged%20Particle%20Simulation.pdf

  12. Goel V, Roy A, Maiti N. Performance optimization of indirectly heated cathode based electron gun by controlling high voltage surface flashover and beam positioning at target plane. Vacuum. 2022;196. Available from: https://doi.org/10.1016/j.vacuum.2021.110759

  13. Goel V, Roy A, Maiti N. Improvement of Electron Gun Breakdown Performance through Surface Flashover and Discharge Studies. IEEE Transactions on Electron Devices. 2023;70(7):3833 –3841. Available from: https://doi.org/10.1109/TED.2023.3273513

  14. Dikshit B, Bhatia MS. A Novel 2700 Bent-Axial-Type Electron Gun and Positioning of its Electron Beam Spot on the Target. IEEE Transactions on Electron Devices. 2010;57(4):939–945. Available from: https://doi.org/10.1109/TED.2010.2040663

  15. Majumdar A, Sahu GK, Thakur KB, Mago VK. Electron-beam generated copper plasma: formation and cross-field propagation”. Journal of Physics D: Applied Physics. 2010;43(7). Available from: https://iopscience.iop.org/article/10.1088/0022-3727/43/7/075204

  16. Goel V, Roy A, Maiti N. 3-D Analysis of Electron Beam Shape at Target Plane through Parametric Variation of an Indirectly Heated Cathode-based Electron Gun. In: 14th International Conference on Electron Beam Technologies (EBT 2022) , Journal of Physics: Conference Series. (Vol. 2443, pp. 1-7) IOP Publishing. 2023.

  17. Goel V, Roy A, Maiti N. A Novel Technique for Optimizing 270°-Bent Electron Gun for Evaporation Applications. IEEE Transactions on Plasma Science. 2020;48(9):3098–3108. Available from: https://doi.org/10.1109/TPS.2020.3018415

  18. El-Saftawy AA, Elfalaky A, Ragheb MS, Zakhary SG. Investigation of Beam Performance Parameters in a Pierce-Type Electron Gun. Science and Technology. 2012;2(6):191–197. Available from: https://doi.org/10.5923/j.scit.20120206.08

  19. Bernius MT, Man KF, Chutjian A. An electrostatically and a magnetically confined electron gun lens system”. Review of Scientific Instruments. 1988;59:2418–2423. Available from: https://doi.org/10.1063/1.1139920

  20. Masood K, SAB, Rafiq M. Magnetically confined high power thermionic line source emitter assembly. Vacuum. 2005;77(2):101–110. Available from: https://doi.org/10.1016/j.vacuum.2004.08.005

Cite this article

Goel V, Roy A, Maiti N. (2024). 3-D Electromagnetic Simulations for Electron Beam Positioning. International Journal of Electronics and Computer Applications. 1(2): 45-49. https://doi.org/10.70968/ijeaca.v1i2.6

Views
2113
Downloads
1065
Citations