Project supported by the Sustainedly Supported Foundation by National Key Laboratory of Science and Technology on Space Microwave(Grant No.HTKJ2023KL504001);the National Natural Science Foundation of China(Grant No.62101434).
Secondary electron yield(SEY)of air-exposed metals tends to be increased because of air-formed oxide,hydrocarbon,and other contaminants.This enhances the possibility of secondary electron multipacting in high-power mi...
supported by the National Key Laboratory Foundation 2021-JCJQ-LB-006,China(No.6142411132116);the Natural Science Basic Research Program of Shaanxi Province,China(Nos.2023-JC-YB-512 and 2023-JC-YB-042);the Fundamental Research Funds for the Central Universities,China(No.ZYTS23075);the China Postdoctoral Science Foundation(No.2019M653545)。
The gas desorbed from the dielectric surface has a great influence on the characteristics of microwave breakdown on the vacuum side of the dielectric window. In this paper, the dielectric surface breakdown is describe...
Recent progress made in the prediction,characterisation,and mitigation of multipactor discharge is reviewed for single‐and two‐surface geometries.First,an overview of basic concepts including secondary electron emis...
Project supported by the National Natural Science Foundation of China(Grant Nos.U1537211 and 61901361)。
Based on the rough surface topography with fractal parameters and the Monte–Carlo simulation method for secondary electron emission properties, we analyze the secondary electron yield(SEY) of a metal with rough surfa...
This work was supported by the National Natural Science Foundation of China(61571022,61971022);the National Key laboratory Foundation(HTKJ2019KI504013,61424020305).
Based on the finite element method(FEM)in the frequency domain and particle-in-cell approach in the time domain,a hybrid domain multipactor threshold prediction algorithm is proposed in this paper.The proposed algorit...
Project supported by the National Natural Science Foundation of China(Grant Nos.U1537211,11705142,and 11675278);the National Key Laboratory Foundation,China(Grant No.9140C530101150C53011)
Secondary electron emission(SEE)of metal and dielectric materials plays a key role in multipactor discharge,which is a bottle neck problem for high-power satelliate components.Measurements of both the secondary electr...
Project supported by the National Natural Science Foundation of China(Grant No.U1537211);the National Key Laboratory Key Foundation,China(Grant No.9140C530101150C53011);China Postdoctoral Science Foundation(Grant No.2015M572661XB)
Multipaction,caused by the secondary electron emission phenomenon,has been a challenge in space applications due to the resulting degradation of system performance as well as the reduction in the service life of high ...
Project supported by the National Natural Science Foundation of China(Grant No.61231003)
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 wi...
Project supported by the National Key Laboratory Foundation,China(Grant No.9140C530103110C5301)
Based on the particle-in-cell technology and the secondary electron emission theory, a three-dimensional simulation method for multipactor is presented in this paper. By combining the finite difference time domain met...