Use of dual-pulse laser-induced breakdown spectroscopy for characterization of the laser cleaning of a first mirror exposed in HL-2A

被引：23
|
作者：
Hai, Ran [1 ]
Wu, Xingwei [1 ]
Xin, Yu [1 ]
Liu, Ping [1 ]
Wu, Ding [1 ]
Ding, Hongbin [1 ]
Zhou, Yan [2 ]
Cai, Laizhong [2 ]
Yan, Longwen [2 ]
机构：
[1] Dalian Univ Technol, Sch Phys & Opt Elect Technol, Chinese Minist Educ, Key Lab Mat Modificat Laser Ion & Electron Beams, Dalian 116024, Peoples R China
[2] Southwestern Inst Phys, Chengdu 610041, Sichuan, Peoples R China
来源：
JOURNAL OF NUCLEAR MATERIALS | 2014年 / 447卷 / 1-3期
基金：
美国国家科学基金会;
关键词：
DIAGNOSTIC-TOOL; LIBS; PERFORMANCE; DEPOSITION; TOKAMAK; ALLOYS; PLASMA; WALL;
D O I：
10.1016/j.jnucmat.2013.12.019
中图分类号：
T [工业技术];
学科分类号：
08 ;
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.
引用
收藏
页码：9 / 14
页数：6
相关论文
共 50 条
  • [41] Laser-induced breakdown spectroscopy as a diagnostic technique for the laser cleaning of marble
    Foundation for Research and, Technology Hellas , Crete, Greece
    Spectrochim Acta Part B At Spectrosc, 1 (41-53):
  • [42] The influence of target surface position on plasma characteristics in dual-pulse fiber-optic laser-induced breakdown spectroscopy
    Yuhua Hang
    Fei Xue
    Tao Liu
    Bin Zhu
    Kaixing Liao
    Yan Qiu
    Applied Physics B, 2021, 127
  • [43] Dual-pulse laser induced breakdown spectroscopy: Time-resolved transmission and spectral measurements
    Hohreiter, V
    Hahn, DW
    SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2005, 60 (7-8) : 968 - 974
  • [44] Applications of ultra-short pulsed laser ablation: thin films deposition and fs/ns dual-pulse laser-induced breakdown spectroscopy
    Teghil, R.
    Santagata, A.
    De Bonis, A.
    Albano, G.
    Villani, P.
    Spera, D.
    Parisi, G. P.
    Galasso, A.
    PHYSICA SCRIPTA, 2008, 78 (05)
  • [45] On-line monitoring of laser cleaning of limestone by laser-induced breakdown spectroscopy and laser-induced fluorescence
    GobernadoMitre, I
    Prieto, AC
    Zafiropulos, V
    Spetsidou, Y
    Fotakis, C
    APPLIED SPECTROSCOPY, 1997, 51 (08) : 1125 - 1129
  • [46] The first years of laser-induced breakdown spectroscopy
    Baudelet, Matthieu
    Smith, Benjamin W.
    JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2013, 28 (05) : 624 - 629
  • [47] Double pulse laser-induced breakdown spectroscopy with femtosecond laser pulses
    Pinon, V.
    Fotakis, C.
    Nicolas, G.
    Anglos, D.
    SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2008, 63 (10) : 1006 - 1010
  • [48] Two-dimensional Elemental Mapping and Analysis of Natural Jade by Reheating Orthogonal Dual-pulse Laser-induced Breakdown Spectroscopy
    Zhuang Er-tian
    Kang Juan
    Wang Ya-Rui
    Li Run-hua
    Chen Yu-qi
    ACTA PHOTONICA SINICA, 2018, 47 (08)
  • [49] Cleaning of the first mirrors and diagnostic windows by YAG laser on HL-2A
    Zhou, Y.
    Zheng, L.
    Gao, H.
    Zhao, G.
    Li, Y. G.
    Li, L. C.
    Jiao, Y. M.
    PHYSICA SCRIPTA, 2009, T138
  • [50] Investigation of 3D elemental distribution on the dome surface of HL-2A divertor by laser-induced breakdown spectroscopy
    Huangfu, X. R.
    Zhao, D.
    Wu, D.
    Liu, J.
    He, Y.
    Shi, X.
    Han, J.
    Gao, L.
    Cai, L.
    Wang, J.
    Gao, J.
    Ke, C.
    Ding, H.
    APPLIED PHYSICS B-LASERS AND OPTICS, 2025, 131 (04):
12345