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个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职：Professor Dr. Hongbin Ding
其他任职：物理学院学术委员会主任，等离子体联合研究中心主任,中国光学工程学会LIBS专委会副主任, 中国核学会核聚变等离子体分会常务理事，辽宁省物理学会副理事长，国际ITER-ITPA 委员
性别：男
毕业院校：巴塞尔大学
学位：博士
所在单位：物理学院
学科：等离子体物理. 光学工程
联系方式：hding@dlut.edu.cn
电子邮箱：hding@dlut.edu.cn
Characterization of Li deposition on the first wall of EAST using laser-induced breakdown spectroscopy
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论文类型：期刊论文
发表时间：2013-07-01
发表刊物：20th International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)
收录刊物：SCIE、EI、CPCI-S
卷号：438
期号：SUPPL
页面范围：S1168-S1171
ISSN号：0022-3115
摘要：Our recent investigations have indicated that laser-induced breakdown spectroscopy (LIBS) may have great potential in the monitoring of the deposition features of plasma-facing materials (PFMs) in experimental advanced superconducting tokamak (EAST). Detailed information on these PFM can be obtained in real time by analyzing the spectra from 200 to 980 nm. The depth distribution of the main elements from PFMs of the EAST divertor was here investigated. The decrease in the concentrations of main deposed elements (such as Li, Fe, and Cr) were clearly observable after the first ten laser pulses at a laser power density of 5 x 10(9) W/cm(2). The concentrations of substrate elements were found to be uniformly distributed along the depth axis. The use of LIBS for the characterization of quasi three-dimensional multi-element distribution maps of the deposition of impurities in the gaps between divertor tiles is here presented. This significantly improves the understanding of the Li deposition behavior of EAST. (C) 2013 Elsevier B. V. All rights reserved.