A hybrid mode of one- and two-surface multipactor on grooved dielectric surface

作者:Cai, Li-Bing; Wang, Jian-Guo*; Cheng, Guo-Xin; Zhu, Xiang-Qin
来源:Chinese Physics B, 2016, 25(2): 025203.
DOI:10.1088/1674-1056/25/2/025203

摘要

A hybrid mode of one- and two-surface multipactor on the grooved dielectric surface is studied in detail using both an analytical approach and two-dimensional particle-in-cell (2D PIC) simulations. When the groove width L< eE(0)/(4 pi m(e)f(2)), there are one-surface multipactor and one-order two-surface multipactor on the grooved dielectric surface, and only one slope of the groove has the multipactor anytime. When L > eE(0)/(4 pi m(e)f(2)), both slopes may have the multipactors. The electron surface density of the multipactor discharge has a sharp increase at the length L = eE(0)/(4 pi m(e)f(2)).