[1] LI Cong, FENG Chunlei, ODERJI H Y et al. Review of LIBS application in nuclear fusion technology[J]. Frontiers of Physics, 11, 1-16(2016).

[2] MERCADIER L, SEMEROK A, KIZUB P A et al. In-depth analysis of ITER-like samples composition using laser-induced breakdown spectroscopy[J]. Journal of Nuclear Materials, 414, 485-491(2011).

[3] GRIGORE E, GHERENDI M, BAIASU F et al. The influence of N on the D retention within W coatings for fusion applications[J]. Fusion Engineering and Design, 146, 1959-1962(2019).

[4] SCHWEER B, BEYENE G, BREZINSEK S et al. Laser techniques implementation for wall surface characterization and conditioning[J]. Physica Scripta, T138, 014008(2009).

[5] YAMAMOTO K Y, CREMERS D A, FERRIS M J et al. Detection of metals in the environment using a portable laser-induced breakdown spectroscopy instrument[J]. Applied Spectroscopy, 50, 222-233(1996).

[6] GRISOLIA C, SEMEROK A, WEULERSSE J M et al. In-situ tokamak laser applications for detritiation and co-deposited layers studies[J]. Journal of Nuclear Materials, 363-365, 1138-1147(2007).

[7] GIERSE N, SCHWEER B, HUBER A et al. In situ characterisation of hydrocarbon layers in TEXTOR by laser induced ablation and laser induced breakdown spectroscopy[J]. Journal of Nuclear Materials, 415, S1195-S1198(2011).

[8] FARID N, LI Cong, WANG Hongbei et al. Laser-induced breakdown spectroscopic characterization of tungsten plasma using the first, second, and third harmonics of an Nd∶YAG laser[J]. Journal of Nuclear Materials, 433, 80-85(2013).

[9] Ran HAI, WU Xingwei, XIN Yu et al. Use of dual-pulse laser-induced breakdown spectroscopy for characterization of the laser cleaning of a first mirror exposed in HL-2A[J]. Journal of Nuclear Materials, 447, 9-14(2014).

[10] FANTONI R, ALMAVIVA S, CANEVE L et al. Hydrogen isotope detection in metal matrix using double-pulse laser-induced breakdown-spectroscopy[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 129, 8-13(2017).

[11] FARID N, WANG Hongbei, LI Cong et al. Effect of background gases at reduced pressures on the laser treated surface morphology, spectral emission and characteristics parameters of laser produced Mo plasmas[J]. Journal of Nuclear Materials, 438, 183-189(2013).

[12] Ran HAI, FARID N, ZHAO Dongye et al. Laser-induced breakdown spectroscopic characterization of impurity deposition on the first wall of a magnetic confined fusion device: experimental advanced superconducting tokamak[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 87, 147-152(2013).

[13] KARHUNEN J, HAKOLA A, LIKONEN J et al. Development of laser-induced breakdown spectroscopy for analyzing deposited layers in ITER[J]. Physica Scripta, T159, 014067(2014).

[14] HUBER A, SCHWEER B, PHILIPPS V et al. Development of laser-based diagnostics for surface characterisation of wall components in fusion devices[J]. Fusion Engineering and Design, 86, 1336-1340(2011).

[15] MERCADIER L, HERMANN J, GRISOLIA C et al. Analysis of deposited layers on plasma facing components by laser-induced breakdown spectroscopy: towards ITER tritium inventory diagnostics[J]. Journal of Nuclear Materials, 415, S1187-S1190(2011).

[16] ZHAO Dongye, LI Cong, HU Zhenhua et al. Remote in situ laser-induced breakdown spectroscopic approach for diagnosis of the plasma facing components on experimental advanced superconducting tokamak[J]. Review of Scientific Instruments, 89, 073501(2018).

[17] HU Zhenhua, LI Cong, XIAO Qingmei et al. Preliminary results of in situ laser-induced breakdown spectroscopy for the first wall diagnostics on EAST[J]. Plasma Science and Technology, 19, 025502(2017).

[18] HU Z, GIERSE N, LI C et al. Development of laser-based technology for the routine first wall diagnostic on the tokamak EAST: LIBS and LIAS[J]. Physica Scripta, T170, 014046(2017).

[19] LI Cong, SUN Liying, HU Zhenhua et al. An in situ diagnostic method for monitoring of fuel retention on the first wall under long-pulse operation of experimental advanced superconducting tokamak[J]. Physica Scripta, 2020, 014069(2020).

[20] LIU P, ZHAO D Y, SUN L Y et al. In situ diagnosis of Li-wall conditioning and H/D co-deposition on the first wall of EAST using laser-induced breakdown spectroscopy[J]. Plasma Physics and Controlled Fusion, 60, 085019(2018).

[21] COLAO F, ALMAVIVA S, CANEVE L et al. LIBS experiments for quantitative detection of retained fuel[J]. Nuclear Materials and Energy, 12, 133-138(2017).

[22] MAURYA G S, JYOTSANA A, KUMAR R et al. In situ analysis of impurities deposited on the tokamak flange using laser induced breakdown spectroscopy[J]. Journal of Nuclear Materials, 444, 23-29(2014).

[23] LI Cong, YOU Jiajia, WU Huace et al. Temporal and spatial evolution measurement of laser-induced breakdown spectroscopy on hydrogen retention in tantalum[J]. Plasma Science and Technology, 22, 074008(2020).

[24] WU Huace, LI Cong, WU Ding et al. Spatiotemporal dynamic characterization of the laser-induced plasma of a mixed material (WCCu) under variable ablation angles in a vacuum[J]. Journal of Analytical Atomic Spectrometry, 37, 2069-2081(2022).

[25] LI Cong, ZHAO Dongye, WU Xingwei et al. Spatial resolution measurements of C, Si and Mo using LIBS for diagnostics of plasma facing materials in a fusion device[J]. Plasma Science and Technology, 17, 638-643(2015).

[26] ZHAO Dongye, LI Cong, WANG Yong et al. Temporal and spatial dynamics of optical emission from laser ablation of the first wall materials of fusion device[J]. Plasma Science and Technology, 20, 014022(2017).

[27] FEDERICI G, SKINNER C H, BROOKS J N et al. Plasma-material interactions in current tokamaks and their implications for next-step fusion reactors[R](2001).

[28] DEKSNIS E B, PEACOCK A T, ALTMANN H et al. Beryllium plasma-facing components: JET experience[J]. Fusion Engineering and Design, 37, 515-530(1997).

[29] KRETER A, DITTMAR T, NISHIJIMA D et al. Erosion, formation of deposited layers and fuel retention for beryllium under the influence of plasma impurities[J]. Physica Scripta, T159, 014039(2014).

[30] MOIR R W. Liquid first walls for magnetic fusion energy configurations[J]. Nuclear Fusion, 37, 557-566(1997).

[31] LI J, GUO H Y, WAN B N et al. A long-pulse high-confinement plasma regime in the experimental advanced superconducting tokamak[J]. Nature Physics, 9, 817-821(2013).

[32] XU G S, WAN B N, LI J G et al. Study on H-mode access at low density with lower hybrid current drive and lithium-wall coatings on the EAST superconducting tokamak[J]. Nuclear Fusion, 51, 072001(2011).

[33] HAI R, LIU P, WU D et al. Effect of steady magnetic field on laser-induced breakdown spectroscopic characterization of EAST-like wall materials[J]. Journal of Nuclear Materials, 463, 927-930(2015).

[34] LIU Ping, Ran HAI, WU Ding et al. The enhanced effect of optical emission from laser induced breakdown spectroscopy of an al-li alloy in the presence of magnetic field confinement[J]. Plasma Science and Technology, 17, 687-692(2015).

[35] NIST Atomic Spectra Database ver. 8[DB](5). https://www.nist.gov/pml/atomic-spectra-database

[36] WU Ding, ZHANG Lei, LIU Ping et al. Diagnostic study of laser-produced tungsten plasma using optical emission spectroscopy and time-of-flight mass spectroscopy[J]. Spectrochimica Acta Part B: Atomic Spectroscopy, 137, 70-76(2017).

[37] WU Ding, SUN Liying, LIU Jiamin et al. Dynamics of prompt electrons, ions, and neutrals of nanosecond laser ablation of tungsten investigated using optical emission[J]. Physics of Plasmas, 26, 013303(2019).