Selfconsistent simulation of radio frequency multipactor on microgrooved dielectric surface
Abstract
The multipactor plays a key role in the surface breakdown on the feed dielectric window irradiated by high power microwave. To study the suppression of multipactor, a 2D electrostatic PICMCC simulation code was developed. The space charge field, including surface deposited charge and multipactor electron charge field, is obtained by solving 2D Poisson's equation in time. Therefore, the simulation is selfconsistent and does not require presetting a fixed space charge field. By using this code, the selfconsistent simulation of the RF multipactor on the periodic microgrooved dielectric surface is realized. The 2D space distributions of the multipactor electrons and space charge field are presented. From the simulation results, it can be found that only half slopes have multipactor discharge when the slope angle exceeds a certain value, and the groove presents a pronounced suppression effect on the multipactor.
 Authors:
 Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049 (China)
 (China)
 Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 (China)
 Publication Date:
 OSTI Identifier:
 22413034
 Resource Type:
 Journal Article
 Resource Relation:
 Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
 Country of Publication:
 United States
 Language:
 English
 Subject:
 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPUTERIZED SIMULATION; DIELECTRIC MATERIALS; ELECTRIC DISCHARGES; ELECTRONS; IRRADIATION; MICROWAVE RADIATION; P CODES; PERIODICITY; RADIOWAVE RADIATION; RF SYSTEMS; SPACE CHARGE; SURFACES
Citation Formats
Cai, Libing, Wang, Jianguo, Email: wanguiuc@mail.xjtu.edu.cn, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, Cheng, Guoxin, Zhu, Xiangqin, and Xia, Hongfu. Selfconsistent simulation of radio frequency multipactor on microgrooved dielectric surface. United States: N. p., 2015.
Web. doi:10.1063/1.4907683.
Cai, Libing, Wang, Jianguo, Email: wanguiuc@mail.xjtu.edu.cn, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, Cheng, Guoxin, Zhu, Xiangqin, & Xia, Hongfu. Selfconsistent simulation of radio frequency multipactor on microgrooved dielectric surface. United States. doi:10.1063/1.4907683.
Cai, Libing, Wang, Jianguo, Email: wanguiuc@mail.xjtu.edu.cn, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024, Cheng, Guoxin, Zhu, Xiangqin, and Xia, Hongfu. Sat .
"Selfconsistent simulation of radio frequency multipactor on microgrooved dielectric surface". United States.
doi:10.1063/1.4907683.
@article{osti_22413034,
title = {Selfconsistent simulation of radio frequency multipactor on microgrooved dielectric surface},
author = {Cai, Libing and Wang, Jianguo, Email: wanguiuc@mail.xjtu.edu.cn and Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 and Cheng, Guoxin and Zhu, Xiangqin and Xia, Hongfu},
abstractNote = {The multipactor plays a key role in the surface breakdown on the feed dielectric window irradiated by high power microwave. To study the suppression of multipactor, a 2D electrostatic PICMCC simulation code was developed. The space charge field, including surface deposited charge and multipactor electron charge field, is obtained by solving 2D Poisson's equation in time. Therefore, the simulation is selfconsistent and does not require presetting a fixed space charge field. By using this code, the selfconsistent simulation of the RF multipactor on the periodic microgrooved dielectric surface is realized. The 2D space distributions of the multipactor electrons and space charge field are presented. From the simulation results, it can be found that only half slopes have multipactor discharge when the slope angle exceeds a certain value, and the groove presents a pronounced suppression effect on the multipactor.},
doi = {10.1063/1.4907683},
journal = {Journal of Applied Physics},
number = 5,
volume = 117,
place = {United States},
year = {Sat Feb 07 00:00:00 EST 2015},
month = {Sat Feb 07 00:00:00 EST 2015}
}

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