Open AccessPIC-MCC simulations on characteristics of RBWO filled with different gases
Author(s) -
Xiaoze Li,
Jianguo Wang,
Changjiang Tong,
Hai Zhang
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.4613
Subject(s) - oscillation (cell signaling) , backward wave oscillator , physics , electron , plasma , beam (structure) , ion , computational physics , energy (signal processing) , cathode ray , atomic physics , optics , nuclear physics , quantum mechanics , genetics , biology
This paper discusses the basic theory of PIC-MCC method and its implementation in the software UNIPIC. Simulation of relativistic backward-wave oscillator (RBWO)filled with different kinds of neutral gas of different pressures is made by using UNIPIC. The effects of plasma on the propagation of electron beam and wave-beam interaction are discussed. The dependence of the output powerfrequencyand the start-oscillation time of the RBWO on the kinds and pressures of the filled gases are presented. The simulation results show that the improvement of RBWO is mainly attributed to the produced ionsand that the low-energy electrons remaining in the tube is the key factor of oscillation-failure and pulse-shortening.