Simulation of multipactor on the rectangular grooved dielectric surface

Journal Article · Sun Nov 15 04:00:00 EST 2015 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4935385· OSTI ID:22489880

Cai, Libing; Wang, Jianguo ^[1]; Cheng, Guoxin; Zhu, Xiangqin; Xia, Hongfu ^[2]

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1. Key Laboratory for Physical Electronics and Devices of Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China)
2. Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 (China)

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.

• OSTI ID: 22489880
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 22; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
COMPUTERIZED SIMULATION
DEPOSITION
DIELECTRIC MATERIALS
ELECTRONS
MATHEMATICAL SOLUTIONS
SPACE CHARGE
SPATIAL DISTRIBUTION
SURFACES