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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
Effect of steady magnetic field on laser-induced breakdown spectroscopic characterization of EAST-like wall materials
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论文类型：期刊论文
发表时间：2015-08-01
发表刊物：21st International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)
收录刊物：SCIE、EI、CPCI-S、Scopus
卷号：463
页面范围：927-930
ISSN号：0022-3115
摘要：Our recent investigations were focused on the feasibility of the LIBS method proposed for EAST under vacuum conditions as well as with a magnetic field. Aluminum (replaced Be)-lithium alloys were used as a substitute for a uniform lithium deposition layer on the first wall. Detailed information of divertor tiles (multi-element doped graphite) and aluminum-lithium alloys were obtained by analyzing the spectra from 200 to 980 nm. With the magnetic field (0.94 T), various line emissions obtained from the constituents of samples shown an enhancement (>2 times) in intensity due to the increase in the effective plasma density and temperature as a result of magnetic confinement. The effect of magnetic field on the emission intensity of LIBS at the different pressure (1.0 x 10(-5)-1000 mbar) would help us to develop a quantitative LIBS approach to monitor impurity deposition and fuel retention on the first wall. (C) 2014 Elsevier B.V. All rights reserved.