论文类型：
期刊论文
第一作者：
Hai, Ran
通讯作者：
Ding, HB (reprint author), Dalian Univ Technol, Sch Phys & Opt Elect Technol, Chinese Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China.
合写作者：
Wu, Xingwei,Xin, Yu,Liu, Ping,Wu, Ding,Ding, Hongbin,Zhou, Yan,Cai, Laizhong,Yan, Longwen
发表时间：
2014-04-01
发表刊物：
JOURNAL OF NUCLEAR MATERIALS
收录刊物：
SCIE、EI、Scopus
文献类型：
J
卷号：
447
期号：
1-3
页面范围：
9-14
ISSN号：
0022-3115
摘要：
Our recent investigations have indicated that dual-pulse laser-induced breakdown spectroscopy (DP-LIBS) has great potential in the online measurement of the laser ablation process of the ultrathin co-deposition layer on the first mirrors of HL-2A tokamak during the cleaning. The spectroscopic study of the plasma emission can be used to determine the elemental composition of the ablated materials. The co-deposition layer (approximately 0.8 mu m) was completely removed after multiple pulses at 0.76 J/cm(2), but the plasma initiated by the cleaning laser pulse was too weak to produce LIBS signals. Notable enhancement of the signal emission was observed using DP-LIBS. The real-time monitoring and accurate identification the interface boundary can provide important information regarding the cleaned mirror surface in order to avoid under-cleaning. This could help us to develop more effective automatic control of the laser cleaning processes for fusion devices. (C) 2013 Elsevier B.V. All rights reserved.
是否译文：
否
