节点文献

Electron emission induced by keV protons from tungsten surface at different temperatures

推荐 CAJ下载
PDF下载
不支持迅雷等下载工具，请取消加速工具后下载。

【Author】 Li-Xia Zeng;Xian-Ming Zhou;Rui Cheng;Yu Liu;Xiao-An Zhang;Zhong-Feng Xu;Ion Beam and Optical Physical Laboratory, Xianyang Normal University;Institute of Science and Technology for Laser and Particle Beams, Xi’an Jiaotong University;Institute of Modern Physics, Chinese Academy of Science;

【通讯作者】曾利霞;徐忠锋;

【机构】 Ion Beam and Optical Physical Laboratory, Xianyang Normal University； Institute of Science and Technology for Laser and Particle Beams, Xi’an Jiaotong University； Institute of Modern Physics, Chinese Academy of Science；

【摘要】 The electron emission yield is measured from the tungsten surface bombarded by the protons in an energy range of 50keV–250keV at different temperatures. In our experimental results, the total electron emission yield, which contains mainly the kinetic electron emission yield, has a very similar change trend to the electronic stopping power. At the same time, it is found that the ratio of total electron emission yield to electronic stopping power becomes smaller as the incident ion energy increases. The experimental result is explained by the ionization competition mechanism between electrons in different shells of the target atom. The explanation is verified by the opposite trends to the incident energy between the ionization cross section of M and outer shells.更多还原

【Abstract】 The electron emission yield is measured from the tungsten surface bombarded by the protons in an energy range of 50keV–250keV at different temperatures. In our experimental results, the total electron emission yield, which contains mainly the kinetic electron emission yield, has a very similar change trend to the electronic stopping power. At the same time, it is found that the ratio of total electron emission yield to electronic stopping power becomes smaller as the incident ion energy increases. The experimental result is explained by the ionization competition mechanism between electrons in different shells of the target atom. The explanation is verified by the opposite trends to the incident energy between the ionization cross section of M and outer shells.更多还原

【关键词】 electron emission； x-ray； electronic stopping power； work function；
【Key words】 electron emission； x-ray； electronic stopping power； work function；

【基金】 Project supported by the National Natural Science Foundation of China (Grant Nos. 11605147, 11375138, and 11505248);the Natural Science Basic Research Plan in Shaanxi Province, China (Grant Nos. 2019JQ-493 and 2021JQ-812);the Scientific Research Program Funded by Shaanxi Provincial Education Department, Shaanxi Province, China (Grant Nos. 20JK0975 and 16JK1824);the Shaanxi University Young Outstanding Talents Support Program, the Xianyang Normal University Young and Middle-aged Top-notch Talents Project, Shaanxi Province, China (Grant No. XSYBJ202004);the Academic Leader Project of Xianyang Normal University, Shaanxi Province, China (Grant No. XSYXSDT202109)

【文献出处】 Chinese Physics B ,中国物理B , 编辑部邮箱 ,2022年07期

【分类号】O462
【下载频次】6

知网节下载

节点文献中：

本文链接的文献网络图示:

本文的引文网络

节点文献