Mechanism of radiation pulse shortening in plasma relativistic microwave generator

Autor: I. L. Bogdankevich, O. T. Loza, S. E. Ernyleva
Rok vydání: 2013
Předmět:
Zdroj: Bulletin of the Lebedev Physics Institute. 40:178-186
ISSN: 1934-838X
1068-3356
DOI: 10.3103/s1068335613070026
Popis: The causes of emission quenching in the plasma relativistic microwave generator are studied by numerical calculations using the particle-in-cell method. The process mechanism in which the plasma boundary moves from the coaxial collector edge with a velocity above 107 cm/s is found. An electron flux with an energy of ∼105 eV and a current of ∼103 A is generated from the collector in the formed gap, which heats plasma and increases its potential. Microwave generation stops due to a multiple decrease in the wave reflectance from the collector. The use of the hollow collector is presumably a method for preventing microwave generation quenching.
Databáze: OpenAIRE