Simulation of multipactor on the rectangular grooved dielectric surface

作者：Cai, Libing; Wang, Jianguo^*; Cheng, Guoxin; Zhu, Xiangqin; Xia, Hongfu

来源：Physics of Plasmas, 2015, 22(11): 113506.

DOI：10.1063/1.4935385

• DISCHARGE
• MECHANISM

Multipactor discharge on the rectangular grooved dielectric surface is simulated self-consistently by using a two-and-a-half dimensional (2.5 D) electrostatic particle-in-cell (PIC) code. Compared with the electromagnetic PIC code, the former can give much more accurate solution for the space charge field caused by the multipactor electrons and the deposited surface charge. According to the rectangular groove width and height, the multipactor can be divided into four models, the spatial distributions of the multipactor electrons and the space charge fields are presented for these models. It shows that the rectangular groove in different models gives very different suppression effect on the multipactor, effective and efficient suppression on the multipactor can only be reached with a proper groove size.

• 出版日期2015-11
• 单位西北核技术研究所; 西安交通大学