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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
Laser-induced breakdown spectroscopic characterization of tungsten plasma using the first, second, and third harmonics of an Nd:YAG laser
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论文类型：期刊论文
发表时间：2013-02-01
发表刊物：JOURNAL OF NUCLEAR MATERIALS
收录刊物：SCIE、EI、Scopus
卷号：433
期号：1-3
页面范围：80-85
ISSN号：0022-3115
摘要：Tungsten has become an important material in fusion reactors and plasma-facing components. Laser ablation of tungsten has been carried out at 1064 nm, 532 nm, and 355 nm at atmospheric pressure to determine the capability of laser-induced breakdown spectroscopy (LIBS) for in situ diagnosis of plasma-facing components. Stark broadening and Boltzmann plots were used for the measurement of electron density and temperature, respectively of laser produced tungsten plasma. At a constant laser irradiance (1.05 x 10(15) W m(-2)) the maximum temperature (16,304 K) was reached at 1064 nm. Maximum electron density (1.12 x 10(18) cm(-3)) was observed at 355 nm. Variations in electron temperature and density as a function of laser irradiance and time are also discussed. This work could provide important reference data for the design and optimization of LIBS systems involved in plasma-facing components diagnostics. (c) 2012 Elsevier B.V. All rights reserved.