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真空 ›› 2019, Vol. 56 ›› Issue (2): 31-36.doi: 10.13385/j.cnki.vacuum.2019.02.06

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基于电子诱导脱附的气体解吸实验装置研究

黄化岩, 刘芳   

  1. 上海科技大学,物质科学与技术学院,上海 201210
  • 收稿日期:2018-04-25 出版日期:2019-03-25 发布日期:2019-04-18
  • 作者简介:黄化岩(1987-),男,湖北省荆门市人,硕士,助研。

Study of the electron-stimulated desorption equipment

HUANG HUA-yan, LIU Fang   

  1. School of Physical Science and Technology, Shanghai Tech University, Shanghai 201210, China
  • Received:2018-04-25 Online:2019-03-25 Published:2019-04-18

摘要: 电子诱导脱附是指荷能电子轰击吸附了气体分子的材料表面,使得气体分子解吸出来的现象。在同步辐射光源、热阴极电离规和真空微电子器件等部件中,上述脱附气载是影响系统真空度和阴极寿命的主要因素。本文以日本光子工厂电子诱导脱附(KEK-ESD)装置试验数据为参考,研制了一台在150eV~1000eV电子能量范围内测量材料电子解吸系数的试验装置,并同KEK-ESD无氧铜材料试验数据进行了对比,证明本装置能有效测试材料表面的电子解吸系数。

关键词: 同步辐射光源, 电子诱导脱附, 真空材料

Abstract: Photo-stimulated-desorption is the synchrotron radiation beam line, which is different from the typical vacuum system. In the whole process of the Photo-stimulated-desorption, photoelectron and secondary electron play a major role in the excitation of adsorption gas on the surface of vacuum material.Theelectron-stimulating desorption equipment (ESD) is important in studying the electron-stimulating gaseswith different materials and processes. Through theoretical calculation and analysis based on the physical process of electron-stimulating desorption, this paper has developed an equipment for above-mentioned experiments in 400eV~1000eV electron energy, which provides the experimental basis for studying optimal processing and treatment process of material surface in vacuum.

Key words: Synchrotron radiation, Photo-stimulated-desorption, Electron stimulating, Vacuum chamber material

中图分类号: 

  • TB71+6
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