X-ray and kinetic electron emission by keV proton impacting on fusion-relevant tungsten
文献类型：会议论文
| 作者 | Cheng, Rui1 ; Zhou, Xianming1,2,5,6; Zeng, Lixia3,4; Lei, Yu1,5; Chen, Yanhong1; Xu, Zhongfeng3; Chen, Ximeng6; Wang, Yuyu1; Zhao, Yongtao1,3; Xiao, Guoqing1
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| 出版日期 | 2017-09 |
| 关键词 | Electron emission X-ray Fusion-relevant tungsten Proton impact |
| 卷号 | 406 |
| DOI | 10.1016/j.nimb.2017.01.032 |
| 页码 | 491-495 |
| 英文摘要 | We have measured the electron and X-ray emission of tungsten bombarded with proton in the energy range of 50-250 keV. It is found that the total electron yield mainly consists of kinetic electron emission, which results from the excited valence electrons, and presents a similar trend to the curve of stopping power. The ratio between electron yield and electronic energy loss is not constant, but decreases with increasing incident energy. The behavior is interpreted by an expected competitive mechanism of ionization between different shell electrons of target atom. The explanation is verified by the experimental increase of M-shell X-ray emission yield, and the measured and calculated ionization cross section of core and valence electrons. (C) 2017 Published by Elsevier B.V. |
| 会议录 | NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
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| 会议录出版者 | ELSEVIER SCIENCE BV |
| 会议录出版地 | PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China (NSFC)[11505248] ; National Natural Science Foundation of China (NSFC)[11375034] ; National Natural Science Foundation of China (NSFC)[11375138] ; National Natural Science Foundation of China (NSFC)[U1532263] ; National Natural Science Foundation of China (NSFC)[11275241] ; National Natural Science Foundation of China (NSFC)[11275238] ; National Natural Science Foundation of China (NSFC)[11205225] |
| WOS研究方向 | Instruments & Instrumentation ; Nuclear Science & Technology ; Physics |
| WOS记录号 | WOS:000407659500018 |
| 源URL | [http://119.78.100.186/handle/113462/58499]  |
| 专题 | 近代物理研究所_实验物理中心 近代物理研究所_兰州重离子研究装置 |
| 通讯作者 | Zhou, Xianming; Wang, Yuyu; Zhao, Yongtao |
| 作者单位 | 1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Nanchang Rd 509, Lanzhou 730000, Gansu, Peoples R China 3.Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Shaanxi, Peoples R China 4.Normal Coll Xianyang, Xianyang 712000, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Gansu, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Rui,Zhou, Xianming,Zeng, Lixia,et al. X-ray and kinetic electron emission by keV proton impacting on fusion-relevant tungsten[C]. 见:. |
入库方式： OAI收割
来源：近代物理研究所
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