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Title: Tracking multiple generation and suppression of secondary electrons on periodic triangular surface

Abstract

To research the dynamic course of multipactor suppression on the periodically patterned surface, tens of electron collision processes are tracked by numerical calculation. The influences of microwave frequency, amplitude of RF electric field, slope angle, the local field enhancement, and the tilted incident electric field on the multipactor suppression are studied by tracking multi-generation electrons' trajectories, hopping and flight time, collision energy, and secondary emission yield. Meanwhile, the dynamic processes of secondary electrons on the periodic surface are analyzed by particle-in-cell (PIC) simulation. The PIC results are consistent with the analytical results in which the electrons fly reciprocatingly between the slopes and impact on the slopes; the methods of increasing the slope angle, enlarging the RF field, and lowering the frequency in a certain range are helpful to enhance the multipactor suppression steadily and persistently.

Authors:
; ; ; ; ; ;  [1]; ;  [1]
  1. Laboratory on Science and Technology of High Power Microwave, Northwest Institute of Nuclear Technology, Xi'an, Shaanxi 710024 (China)
Publication Date:
OSTI Identifier:
22218379
Resource Type:
Journal Article
Journal Name:
Physics of Plasmas
Additional Journal Information:
Journal Volume: 20; Journal Issue: 12; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1070-664X
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; AMPLITUDES; COMPUTERIZED SIMULATION; ELECTRIC FIELDS; ELECTRON COLLISIONS; ELECTRON EMISSION; ELECTRONS; MICROWAVE RADIATION; PERIODICITY; PHOTON EMISSION; SECONDARY EMISSION

Citation Formats

Li, S., Wang, J. G., Zhu, M., Peng, J. C., Xie, J. L., Wu, X. L., Guo, L. T., Chang, C., Xiong, Z. F., and Department of Engineering Physics, Tsinghua University, Beijing 10084. Tracking multiple generation and suppression of secondary electrons on periodic triangular surface. United States: N. p., 2013. Web. doi:10.1063/1.4831763.
Li, S., Wang, J. G., Zhu, M., Peng, J. C., Xie, J. L., Wu, X. L., Guo, L. T., Chang, C., Xiong, Z. F., & Department of Engineering Physics, Tsinghua University, Beijing 10084. Tracking multiple generation and suppression of secondary electrons on periodic triangular surface. United States. https://doi.org/10.1063/1.4831763
Li, S., Wang, J. G., Zhu, M., Peng, J. C., Xie, J. L., Wu, X. L., Guo, L. T., Chang, C., Xiong, Z. F., and Department of Engineering Physics, Tsinghua University, Beijing 10084. 2013. "Tracking multiple generation and suppression of secondary electrons on periodic triangular surface". United States. https://doi.org/10.1063/1.4831763.
@article{osti_22218379,
title = {Tracking multiple generation and suppression of secondary electrons on periodic triangular surface},
author = {Li, S. and Wang, J. G. and Zhu, M. and Peng, J. C. and Xie, J. L. and Wu, X. L. and Guo, L. T. and Chang, C. and Xiong, Z. F. and Department of Engineering Physics, Tsinghua University, Beijing 10084},
abstractNote = {To research the dynamic course of multipactor suppression on the periodically patterned surface, tens of electron collision processes are tracked by numerical calculation. The influences of microwave frequency, amplitude of RF electric field, slope angle, the local field enhancement, and the tilted incident electric field on the multipactor suppression are studied by tracking multi-generation electrons' trajectories, hopping and flight time, collision energy, and secondary emission yield. Meanwhile, the dynamic processes of secondary electrons on the periodic surface are analyzed by particle-in-cell (PIC) simulation. The PIC results are consistent with the analytical results in which the electrons fly reciprocatingly between the slopes and impact on the slopes; the methods of increasing the slope angle, enlarging the RF field, and lowering the frequency in a certain range are helpful to enhance the multipactor suppression steadily and persistently.},
doi = {10.1063/1.4831763},
url = {https://www.osti.gov/biblio/22218379}, journal = {Physics of Plasmas},
issn = {1070-664X},
number = 12,
volume = 20,
place = {United States},
year = {Sun Dec 15 00:00:00 EST 2013},
month = {Sun Dec 15 00:00:00 EST 2013}
}