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Title: Relativistic solutions for one- and two-dimensional space-charge limited current in coaxial diode

Abstract

This paper reports the two-dimensional physics and space-charge limited current (SLC) of coaxial diodes with a finite-length emitter. A full-voltage and one-dimensional approximate solution is first obtained by matching the non-relativistic solution to the super-relativistic solution. Including the effects of fields induced by the anode current and the beam itself yields the pinch-limited current in the coaxial diode. The SLC of a practically applied coaxial diode with a finite length emitter is obtained by a semi-analytical method. The solutions well agree with numerical solutions and particle-in-cell simulations.

Authors:
 [1];  [2]; ; ;  [2]
  1. Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China)
  2. Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024 (China)
Publication Date:
OSTI Identifier:
22218630
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 20; Journal Issue: 5; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANODES; APPROXIMATIONS; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; NUMERICAL SOLUTION; ONE-DIMENSIONAL CALCULATIONS; PINCH EFFECT; PLASMA SIMULATION; RELATIVISTIC PLASMA; SPACE CHARGE; THERMIONIC DIODES; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Yang, Zhanfeng, Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024, Liu, Guozhi, Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shao, Hao, Yan, Teng, and Zhang, Yuchuan. Relativistic solutions for one- and two-dimensional space-charge limited current in coaxial diode. United States: N. p., 2013. Web. doi:10.1063/1.4804403.
Yang, Zhanfeng, Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024, Liu, Guozhi, Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shao, Hao, Yan, Teng, & Zhang, Yuchuan. Relativistic solutions for one- and two-dimensional space-charge limited current in coaxial diode. United States. https://doi.org/10.1063/1.4804403
Yang, Zhanfeng, Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024, Liu, Guozhi, Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, Shao, Hao, Yan, Teng, and Zhang, Yuchuan. 2013. "Relativistic solutions for one- and two-dimensional space-charge limited current in coaxial diode". United States. https://doi.org/10.1063/1.4804403.
@article{osti_22218630,
title = {Relativistic solutions for one- and two-dimensional space-charge limited current in coaxial diode},
author = {Yang, Zhanfeng and Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024 and Liu, Guozhi and Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 and Shao, Hao and Yan, Teng and Zhang, Yuchuan},
abstractNote = {This paper reports the two-dimensional physics and space-charge limited current (SLC) of coaxial diodes with a finite-length emitter. A full-voltage and one-dimensional approximate solution is first obtained by matching the non-relativistic solution to the super-relativistic solution. Including the effects of fields induced by the anode current and the beam itself yields the pinch-limited current in the coaxial diode. The SLC of a practically applied coaxial diode with a finite length emitter is obtained by a semi-analytical method. The solutions well agree with numerical solutions and particle-in-cell simulations.},
doi = {10.1063/1.4804403},
url = {https://www.osti.gov/biblio/22218630}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 5,
volume = 20,
place = {United States},
year = {Wed May 15 00:00:00 EDT 2013},
month = {Wed May 15 00:00:00 EDT 2013}
}