Particle-in-cell based parameter study of 12-cavity, 12-cathode rising-sun relativistic magnetrons for improved performance

Particle-in-cell simulations are performed to analyze the efficiency, output power and leakage currents in a 12-Cavity, 12-Cathode rising-sun magnetron with diffraction output (MDO). The central goal is to conduct a parameter study of a rising-sun magnetron that comprehensively incorporates performa...

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Bibliographic Details
Published inAIP advances Vol. 5; no. 10; pp. 107102 - 107102-14
Main Authors Majzoobi, A., Joshi, R. P., Neuber, A. A., Dickens, J. C.
Format Journal Article
LanguageEnglish
Published Melville American Institute of Physics 01.10.2015
AIP Publishing LLC
Subjects
CATHODES
COMPUTERIZED SIMULATION
DIFFRACTION
EFFICIENCY
EXTRACTION
Feature extraction
Leakage
LEAKAGE CURRENT
MAGNETIC FIELDS
MAGNETRONS
MATERIALS SCIENCE
Parameters
Particle in cell technique
PARTICLES
Plasma
Power efficiency
POWER RANGE 01-10 GW
RELATIVISTIC RANGE
Sun
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Summary:Particle-in-cell simulations are performed to analyze the efficiency, output power and leakage currents in a 12-Cavity, 12-Cathode rising-sun magnetron with diffraction output (MDO). The central goal is to conduct a parameter study of a rising-sun magnetron that comprehensively incorporates performance enhancing features such as transparent cathodes, axial extraction, the use of endcaps, and cathode extensions. Our optimum results demonstrate peak output power of about 2.1 GW, with efficiencies of ∼70% and low leakage currents at a magnetic field of 0.45 Tesla, a 400 kV bias with a single endcap, for a range of cathode extensions between 3 and 6 centimeters.
ISSN:2158-3226
2158-3226
DOI:10.1063/1.4932634