Development of low-pressure high-current plasma cathode electron gun and use of associated techniques
Udit Narayan Pal,Niraj Kumar,D. K. Verma,Jitendra Prajapati,Mahesh Kumar,Vishnu Srivastava,H.K. Dwivedi,Ram Prakash +7 more
TLDR
A pseudospark-based hollow cathode electron (PCE) gun has been designed and developed for microwave generation which is operated in argon atmosphere and an analysis of the electron beam profile inside the drift space at different operating conditions has been carried out as mentioned in this paper.Abstract:
A plasma cathode electron (PCE) gun has capabilities for generating high-current, broad, and focused beams for plasma-assisted microwave sources. A pseudospark-based hollow cathode PCE gun has been designed and developed for microwave generation which is operated in argon atmosphere. An analysis of the electron beam profile inside the drift space at different operating conditions has been carried out. This has been performed at several axial and radial locations inside the drift space which shows coherent phases of beam profiles in radial direction. The focusing and defocusing points in axial direction are also obtained. The beam current at different axial location for different applied voltages has been estimated. The obtained beam current is in close agreement with the beam current estimated by the particle-in-cell simulation code for the same geometry.read more
Citations
More filters
Journal ArticleDOI
Investigation of Electron Beam Generation in Pseudospark Discharge-Based Plasma Cathode Electron Source
Varun,Udit Narayan Pal +1 more
TL;DR: In this paper, an investigation has been carried out for the generation of electron beam in the pseudospark discharge-based plasma cathode electron (PD-PCE) source for a wide range of geometrical and operating parameters, such as cathode aperture, gas pressure, and seed electron energy, using 2-D kinetic plasma simulation code.
Journal ArticleDOI
Estimation of Beam and Plasma Parameters for Electron Beam Transport in Ion-Focused Regime
TL;DR: In this paper, the analysis of cylindrical electron beam and beam-impact-generated plasma using particle-in-cell simulation code VSim 6.2 at different operating conditions is presented.
Journal ArticleDOI
Simulation and experimental studies of 20 kV/200 A PCE-Gun for discharge current analysis
TL;DR: In this article, an effort has been made to study the recently developed pseudospark discharge-based 20-kV/200-A plasma cathode electron gun by using 3-D particle-in-cell simulation code VORPAL for discharge current analysis to validate the experiments.
Technological Advancement in Plasma Assisted Microwave Source at CSIR-CEERI
Niraj Kumar,Udit Narayan Pal,Dharmendra Kumar Pal,Arvind Singh Jardon,Nalini Pareek,Y. Srivastava,Hasib Rahman,Ram Prakash +7 more
TL;DR: In this paper, a pseudospark discharge based single gap plasma cathode electron (PCE) gun, multi-gap PCE-Gun and sheet beam PCEgun have been developed.
References
More filters
Journal ArticleDOI
The fundamentals of the pseudospark and its applications
K. Frank,J. Christiansen +1 more
TL;DR: The pseudospark, an axially symmetric gas discharge at low pressures of typically 10 to 100 Pa and high voltages (of some hundred volts up to several hundreds of kilovolts), has become of interest in fast high-power switching, in producing well-pinched high intensity electron or ion beams, and as an X-ray source as mentioned in this paper.
BookDOI
Physics and applications of pseudosparks
TL;DR: In this paper, the authors examined the physics for high current emission and conduction observed in hollow cathode-hollow anode switches including the pseudospark and BLT, particularly centered around the triggering/conduction phase.
Journal ArticleDOI
Generation and application of pseudospark-sourced electron beams
TL;DR: In this paper, a pseudospark discharge has been shown to be a promising source of high brightness, high intensity electron beam pulses, and a new Cherenkov interaction experiment with an input seed wave from a 20 kW, 35 GHz pulsed magnetron has been designed using the same PS HCP beam.
PatentDOI
High-current, low-pressure plasma-cathode electron gun
TL;DR: In this article, a thermionic emitter within an enclosure with a partially transparent electrode defining a plasma face is described, where a magnetic system forms an inward directed field, and a portion of the plasma electrons are directed through this field to enhance ionization efficiency.