Published May 2013 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Northwest Institute of Nuclear Technology, P. O. Box 69-13, Xi'an 710024 (China)
  • 2. Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China)

Description

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

Additional details

Identifiers

DOI
10.1063/1.4804403;

Publishing Information

Journal Title
Physics of Plasmas
Journal Volume
20
Journal Issue
5
Journal Page Range
p. 053103-053103.5
ISSN
1070-664X
CODEN
PHPAEN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45039596
Subject category
S70: PLASMA PHYSICS AND FUSION TECHNOLOGY; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
Descriptors DEI
ANODES; APPROXIMATIONS; ELECTRIC CURRENTS; ELECTRIC POTENTIAL; NUMERICAL SOLUTION; ONE-DIMENSIONAL CALCULATIONS; PINCH EFFECT; PLASMA SIMULATION; RELATIVISTIC PLASMA; SPACE CHARGE; THERMIONIC DIODES; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
CALCULATION METHODS; CURRENTS; DIODE TUBES; ELECTRODES; ELECTRON TUBES; MATHEMATICAL SOLUTIONS; PLASMA; SIMULATION; THERMIONIC TUBES

Optional Information

Notes
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