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142 / 2023-09-20 23:50:31
Numerical Calculation and Experimental Study of Ultraviolet Photoelectron Emission Yield of Metallic Aluminum
spacecraft charged, ultraviolet light, photoelectron emission, yield spectra
Special Sessions > SS17 - Principles, methods and applications of photoelectron spectroscopy analytical instruments
Final Paper
Yali Guo / Xi’an Jiaotong University
Yu Chen / Xi'an Jiaotong University
Xiaohan Hou / Xi'an Jiaotong University
Changxi Li / Xi'an Jiaotong University
Hui Zhong / Xi'an Jiaotong University
Shuang Wang / Xi’an Jiaotong University
Zicai Shen / China Academy of Space Technology
Yu Huang / Chinese Academy of Sciences；Changchun Institute of Optics； Fine Mechanics and Physics
Aiming at the problem of surface charging of exposed materials faced by spacecraft operation in orbit, this paper analyzes the photoelectron emission mechanism of metallic aluminum. Based on the three-step theoretical model of photoelectron emission, the expression of photoelectron emission yield of metallic materials is derived, and the numerical calculation of photoelectron emission yield of aluminum materials is completed. At the same time, the test of metallic aluminum was carried out by using the ultraviolet photoelectron emission spectral test system for space materials, and the results show that the photoelectron emission yield of metallic aluminum is 10-2-10-6 in the wavelength range of 120 nm-240 nm. As the wavelength of the incident light increases, the photoelectron emission yield of the material decreases, and the theoretical results are analyzed and discussed.
Important Date

  • Conference Date

    Nov 02

    2023

    to

    Nov 04

    2023

  • Dec 15 2023

    Draft paper submission deadline

  • Dec 20 2023

    Registration deadline

Sponsored By
IEEE Instrumentation and Measurement Society
Xidian University
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