Asian Journal of Physics Vol 32, Nos 9 – 12 (2023) 479-485

Development and characterization of pseudospark discharge based plasma cathode electron
(PD-PCE) source for high density and energetic e-beam generation for pulsed power applications

Varuna,b, Akhilesh Mishraa,b, Navin Kumar Sharmac, Ram Prakash Lambaa,b and Udit Narayan Pala,b
aCSIR-Central Electronics Engineering Research Institute, Pilani-333 031, India
bAcademy of Scientific and Innovative Research (AcSIR), Ghaziabad-201 002, India
cSchool of Physics, Devi Ahilya Vishwavidyalaya, Indore-452 001, India
Dedicated to Prof B N Basu


The development and characterization study of a multi-gap pseudospark discharge based plasma cathode (PD-PCE) has been carried out for the generation of high density, energetic and short pulsed electron beams, suitable for potential applications in EUV/Soft X-ray, and surface modification studies. The investigations of multi-gap PD-PCE sources with different gas pressures, applied voltages (20–35 kV), and electrode aperture sizes (2–6 mm) for the generation of required short pulse electron beams have been carried out. The proposed analysis has helped in the design and development of multi-gap (4-gap) PD-PCE sources having uniform sequence of electrode apertures diameters (4 mm). The developed PD-PCE source has shown the capability of repeatable generation of high pulsed electron beam current of ~1.4 kA with current density of ~ 1.1 ×104 A/cm2 at 35 kV applied voltage with 4 mm electrode aperture. The developed PD-PCE source also generated and propagated the required high density and energetic pulsed electron beam by controlling the geometrical and operating parameters. The investigations and findings of the present work would be useful for the optimisation of the design and development of multi-gap PD-PCE sources required for the efficient generation of EUV/soft X-ray radiation. © Anita Publications. All rights reserved.
Keywords: Pseudospark discharge, Pulsed e-beam, Electron source.


Peer Review Information
Method: Single- anonymous; Screened for Plagiarism? Yes
Buy this Article in Print © Anita Publications. All rights reserve

References

  1. Cross W, Yin H, He W, Ronald K, Phelps A D R, Pitchford L C, Generation and application of pseudospark-sourced electron beams, J Phys D Appl Phys, 7(40)1953–1956.
  2. Christiansen J, Schultheiss C, Production of high current particle beams by low pressure spark discharges, Zeitschrift Phys A, Atoms Nucl, 290(1979)35–41.
  3. Fu Y, Hu J, Zhang X, Huo W, Cao X, Zhao W, “Surface modification of AISI 1045 steel by pseudospark based pulsed electron beam, Nucl Instrum Methods Phys Res Sect B: Beam Interact with Mater Atoms, 434(2018)88–92.
  4. Mishra A, Misra S, Lamba R P, Tillu A R, Pal U N, Performance of a Multigap Multiaperture Pseudospark Switch in Series With the Saturable Inductor, IEEE Trans Electron Devices, 69(2022)5879–5885.
  5. Pal U N, Lamba R P, Varun, Meena B L, Frank K, A multigap multiaperture pseudospark switch and its performance analysis for high-voltage applications, IEEE Trans Electron Devices, 67(2020)5600–5604.
  6. Varun, Cross A W, Ronald K, Pal U N, PIC simulation of pseudospark discharge-based plasma cathode electron source for the generation of high current density and energetic electron beam, IEEE Trans Electron Devices, 67(2020)1793–1796.
  7. Varun, Pal U N, PIC Simulation to Analyze Peak Electron Current Generation in a Triggered Pseudospark Discharge-Based Plasma Cathode Electron Source, IEEE Trans Electron Devices, 65(2018)1542–1549.
  8. Varun, Pal U N, Investigation of Electron Beam Generation in Pseudospark Discharge-Based Plasma Cathode Electron Source, IEEE Trans Plasma Sci, 46(2018)2003–2008.
  9. . 9. Varun, Dwivedi H K, Pal U N, Breakdown Characteristics of Triggered Pseudospark Discharge-Based Multigap Plasma Cathode Electron Source, IEEE Trans Electron Devices, 65(2018)4607–4613.
  10. Varun, Lamba R P, Pal U N, Characterization of Pseudospark Discharge-Based Multigap Plasma Cathode Electron Source for the Generation of Short Pulsed Energetic Electron Beam, IEEE Trans Electron Devices, 69(2022)4572–4578.
  11. Varun, Pal U N, Impact of irregular electrode apertures in multigap pseudospark discharge geometries for the generation of high density and energetic electron beams, IEEE Trans Electron Devices, 67(2020)2182–2187.
  12. Varun, Sharma N K, Pal U N, Design of multigap pseudospark discharge-based plasma cathode electron source at different configurations of electrode apertures, IEEE Trans Electron Devices, 68(2021)5799–5806.