Ran Hai

Associate Professor   Supervisor of Doctorate Candidates   Supervisor of Master's Candidates

Gender:Male

Alma Mater:大连理工大学

Degree:Doctoral Degree

School/Department:物理学院

Discipline:Plasma physics

E-Mail:rhai@dlut.edu.cn


Paper Publications

Effect of steady magnetic field on laser-induced breakdown spectroscopic characterization of EAST-like wall materials

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Indexed by:期刊论文

Date of Publication:2015-08-01

Journal:21st International Conference on Plasma-Surface Interactions in Controlled Fusion Devices (PSI)

Included Journals:SCIE、EI、CPCI-S、Scopus

Volume:463

Page Number:927-930

ISSN No.:0022-3115

Abstract: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.

Pre One:In-situ analysis of the first wall by laser-induced breakdown spectroscopy in the TEXTOR tokamak: Dependence on the magnetic field strength

Next One:Analysis and removal of ITER relevant materials and deposits by laser ablation

Profile

海然,副教授,博士生导师,国家重点研发项目负责人,大连市青年科技之星。博士毕业于大连理工大学等离子体物理专业。2014年9月至2016年10月公派赴美国加州大学伯克利分校-劳伦斯伯克利国家实验室进行博士联合培养。

主要从事基于激光光谱技术托卡马克装置内壁状态原位诊断、等离子体与壁材料相互作用研究,同时,包括环境污染、工业样品中多元素成分的远程、实时、定量化激光光谱分析、有机物快速分类等研究工作。在Optics express, Journal of Analytical Atomic Spectrometry, Spectrochimica Acta Part B:Atomic Spectroscopy等国外核心杂志发表SCI论文30余篇,SCI-Q1分区封面论文3篇,已授权发明专利10项;承担国家及省部级科研项目4项,参与重大科研项目多项,是我校牵头的国家重大ITER专项的研究骨干成员。