大连理工大学丁洪斌教授LIBS团队：核聚变材料LIBS应用及激光烧蚀物理研究

　　一、大连理工大学丁洪斌教授LIBS团队风采

　　团队由丁洪斌教授、李聪副教授、海然讲师为核心成员，目前有高级工程师1人，工程师2人，在读博士生13人、国际留学生4人、在读硕士生7人。团队依托于大连理工大学物理学院、等离子体物理国家重点学科、中俄白等离子体科学研究中心、三束材料改性教育部重点实验室，致力于磁约束核聚变壁材料LIBS应用研究和激光烧蚀基本物理研究。在国内外重要学术杂志发表论文近百篇，已授权国家发明专利14项。团队负责承担了国家重大ITER专项、国家重点研发计划、国家自然科学基金、国际重大合作(中德)基金等项目。

　　二、相关研究成果及研究最新进展

　　1.磁约束核聚变壁材料LIBS应用研究

　　磁约束聚变能是最具有潜力的清洁安全能源之一，磁约束聚变等离子体与第一壁相互作用(PWI)所引发的壁刻蚀及燃料杂质再沉积是制约磁约束聚变装置长脉冲高约束模式运行的关键问题，也是将来实现聚变能发电必须解决的关键问题。

　　课题组首次建立的全超导大型托卡马克EAST原位LIBS壁诊断系统已成功应用于EAST第一壁元素的实时在线检测，这是国际上首次将LIBS技术用于具有偏滤器位形的大型托卡马克聚变装置。课题组还在德国于利希研究中心TEXTOR托卡马克、荷兰基础能源研究所Magnum-PSI直线等离子体装置开展了LIBS原位系统研发及PWI研究工作。在LIBS壁诊断机理及关键技术研究上，取得了一批具有特色的创新成果。此外与中核集团HL-2A/2M托卡马克、德国马普学会的世界上最大的仿星器Wendelstein 7-X合作的LIBS壁诊断研究合作项目也正在开展中。研制的LIBS关键壁诊断技术对将来开展ITER高参数长脉冲运行下的壁原位诊断具有重要意义。

　　2.激光烧蚀基本物理过程研究

　　团队针对激光烧蚀基本物理过程，系统开展了背景气压、氛围气体、磁场环境、激光波长、激光脉宽等实验条件对LIBS光谱及激光烧蚀等离子体的时空演化的影响的实验研究。发展了基于DP-LIBS、Ps-LIBS、Fs-LIBS等先进诊断技术，可在高真空、强磁场等严酷环境下对固体样品进行远程在线、高灵敏度、高空间分辨定量分析。通过LIBS与飞行时间质谱方法相结合系统研究了激光烧蚀不同靶材(金属到非金属，低Z到高Z，化合物到合金材料)等离子体中不同电荷态离子、原子、分子等多物种膨胀过程中的时空演化规律。探索空间约束、辉光放电、磁场约束等LIBS信号增强应用技术。激光烧蚀理论研究方面，团队自主开发了激光烧蚀流体动力学数值模拟程序，已获批软件著作权两项。这些工作对深入理解激光烧蚀基本物理过程，提高LIBS的定量化水平具有重要的意义。

　　三、发表LIBS相关研究论文

　　1. Ran Hai, Xianglei Mao, George C.-Y. Chan, Richard E. Russo, Hongbin Ding, Vassilia Zorba, Internal mixing dynamics of Cu/Sn-Pb plasmas produced by femtosecond laser ablation, Spectrochimica Acta Part B, 148, 2018: 92–98.

　　2. J. Oelmann, N. Gierse, Cong Li, S. Brezinsek, M. Zlobinski, B. Turan, S. Haas, Ch. Linsmeier, Depth-resolved sample composition analysis using laser-induced ablation-quadrupole mass spectrometry and laser-induced breakdown spectroscopy, Spectrochimica Acta Part B: Atomic Spectroscopy, 2018, 144:38–45.

　　3. D. Zhao, Cong Li (并列一作), Z. Hu, C. Feng, Q. Xiao, R. Hai, P. Liu, L. Sun, D. Wu, C. Fu, J. Liu, N. Farid, F. Ding, G. Luo, L. Wang, H. Ding, Remote in situ laser-induced breakdown spectroscopic approach for diagnosis of the plasma facing components on experimental advanced superconducting tokamak, Review of Scientific Instruments, 2018, 89:073501.

　　4. P. Liu, D. Zhao, L. Sun, C. Fu, J. Liu, Cong Li, R. Hai, C. Fu, Z. Hu, Z. Sun, J. Hu, J. Chen, Y. Liang, G. Luo, H. Ding, EAST team, In situ diagnosis of Li-wall conditioning and H/D co-deposition on the first wall of EAST using laser-induced breakdown spectroscopy, Plasma Physics and Controlled Fusion, 2018, 60:085019.

　　5. D. Zhao, Cong Li, Y. Wang, Z. Wang, L. Gao, Z. Hu, J. Wu, G. Luo, H. Ding, Temporal and spatial dynamics of optical emission from laser ablation of the first wall materials of fusion device, Plasma Science and Technology, 2018, 20:014022.

　　6. Dongye Zhao, Niels Gierse, Julian Wegner, Georg Pretzler, Jannis Oelmann, Sebastijan Brezinsek, Yunfeng Liang, Olaf Neubauer, Marcin Rasinski, Christian Linsmeier, Hongbin Ding, Ablation mass features in multi-pulses femtosecond laser ablate molybdenum target, Nuclear Inst, and Methods in Physics Research B, 418, 2018: 54–59.

　　7. Ping Liu, Jiamin Liu, Ding Wu, Liying Sun, Ran Hai, Hongbin Ding, Study of Spark Discharge Assisted to Enhancement of Laser-Induced Breakdown Spectroscopic Detection for Metal Materials, Plasma Chem Plasma Process, 2018, 38:803–816.

　　8. Z. Hu, N. Gierse, Cong Li, J. Oelmann, D. Zhao, M. Tokar, X. Jiang, D. Nicolai, J. Wu, F. Ding, S. Brezinsek, H. Ding, G. Luo, Ch. Linsmeier, Laser induced ablation spectroscopy for in situ characterization of the first wall on EAST tokamak, Fusion Engineering and Design, 2018, 135:95–101.

　　9. Ding Wu, Liying Sun, Ping Liu, Ran Hai, Hongbin Ding, Enhancement of Laser-Induced Breakdown Spectroscopic Signals in a Liquid Jet with Glow Discharge, Applied Spectroscopy, 2018, 72: 225–233.

　　10. Cailong FU, Qi WANG and Hongbin DING, Numerical simulation of laser ablation of molybdenum target for laser-induced breakdown spectroscopic application, Plasma Sci. Technol., 2018, 20: 085501.

　　11. Cong Li, N. Gierse, J. Oelmann, S. Brezinsek, M. Rasinski, C. P. Dhard, T. Sunn Pedersen, R. König, Y. Liang, H. Ding, Ch. Linsmeier, the W7-X team, Laser-induced breakdown spectroscopy for Wendelstein 7-X stellarator limiter tile analysis, Physica Scripta, 2017, T170:014004.

　　12. Cong Li, Yong Wang, Xingwei Wu, Hongyue Li, Jiansheng Hu, Junling Chen, Guang-Nan Luo, Hongbin Ding, Compositions and chemical states on the co-deposition layer of lithiated tungsten of plasma-facing components of EAST, Nuclear Materials and Energy, 2017, 12: 1209–1213.

　　13. Ping Liu, Ding Wu, Liying Sun, Ran Hai, Jiamin Liu, Hongbin Ding, Magnetic field selective enhancement of Li I lines comparing Li II line in laser ablated lithium plasma at 10?2 mbar air ambient gas, Spectrochimica Acta Part B Atomic Spectroscopy, 2017, 137: 77–84.

　　14. Ping Liu, Ding Wu, Liying Sun, Dongye Zhao, Rai Hai, Cong Li, Hongbin Ding, Zhenhua Hu, Liang Wang, Jiansheng Hu, Junlin Chen, Guangnan. Luo and EAST team, Laser-induced breakdown spectroscopy to monitor ion cyclotron range of frequency wall cleaning Li/D co-deposition in EAST tokamak, Fusion Engineering and design, 2017, 118: 98–103.

　　15. Ding Wu, Lei Zhang, Ping Liu, Liying Sun, Ran Hai, Hongbin Ding, Diagnosis of laser produced tungsten plasma using optical spectroscopy combined to time-of-flight mass spectroscopy, Spectrochimica Acta Part B Atomic Spectroscopy, 2017, 137: 70–76.

　　16. Zhenhua Hu, N. Gierse, Cong Li, Ping Liu, Dongye Zhao, Liying Sun, J. Oelmann, Dirk Nicolai, Ding Wu, Jing Wu, Hongmin Mao, Fang Ding, S. Brezinsek, Yunfeng Liang, Hongbin Ding, Guang-Nan Luo, C. Linsmeier and EAST team, Development of laser-based technology for the routine first wall diagnostic on the tokamak EAST: LIBS and LIAS, Physica Scripta, 2017, T170: 014046.

　　17. Zhenhua HU, Cong LI, Qingmei XIAO, Ping LIU, Fang DING, Hongmin MAO, Jing WU, Dongye ZHAO, Hongbin DING, Guang-Nan LUO and EAST team, Preliminary results of in situ laser-induced breakdown spectroscopy for the first wall diagnostics on EAST, Plasma Science and Technology, 2017, 19: 025502.

　　18. M. Imran, J. Shi, D. Zhao, Q. Wang, Y. Wang, Cong Li, R. Hai, H. Sattar, Z. Mu, W. Wang, G. Luo, G. E. Remnev, H. Ding, Preparation and characterization of a tungsten coating layer on CuCrZr alloy for the plasma facing components of the EAST, High Temperature Material Processes: An International Quarterly of High-Technology Plasma Processes, 2017, 21:277–288.

　　19. Cong Li, Chun-Lei Feng, Hassan Yousefi Oderji, Guang-Nan Luo, Hong-Bin Ding, Review of LIBS application in nuclear fusion technology, Frontiers of Physics, 2016, 11: 114214.

　　20. Hassan Youse? Oderji, Nazar Farid, Liying Sun, Cailong Fu, Hongbin Ding, Evaluation of explosive sublimation as the mechanism of nanosecond laser ablation of tungsten under vacuum conditions, Spectrochimica Acta Part B, 2016, 122: 1–8.

　　21. Wu Ding, Liu Ping, Sun, Liying, Hai Ran, Ding Hongbin, Influence of a Static Magnetic Field on Laser Induced Tungsten Plasma in Air, Plasma Science and Technology, 2016, 18: 364–369.

　　22. N.Gierse ,T.Schildt, H.G.Esser, G. Sergienko, S.Brezinsek, M. Freisinger, D.Zhao, H.Ding, A.Terra, U. Samm, Ch. Linsmeier, Quartz Crystal Microbalances (QMBs) for quantitative picosecond laser-material-interaction investigations – Part I: Technical considerations, Spectrochimica Acta Part B, 2016, 126: 79–83.

　　23. Laizhong Cai, Jianbao Wang, Ting Wu, Xiaoxiao Zeng, Ran Hai, Hongbin Ding, Characterized the pattern of the material deposition in the HL-2A tokamak, Journal of Nuclear Materials, 2016, 485: 67–73.

　　24. Cong Li, Dongye Zhao, Zhenhua Hu, Xingwei Wu, Guang-Nan Luo, Jiansheng Hu, Hongbin Ding, Characterization of deuterium retention and co-deposition of fuel with lithium on the divertor tile of EAST using laser induced breakdown spectroscopy, Journal of Nuclear Materials, 2015, 463: 915–918.

　　25. Cong LI, Dongye ZHAO, Xingwei WU, Hongbin DING, Spatial Resolution Measurements of C, Si and Mo Using LIBS for Diagnostics of Plasma Facing Materials in a Fusion Devic, Plasma Science and Technology, 2015, 17: 638–643.

　　26. Ran Hai, Ping Liu, Ding Wu, Qingmei Xiao, Liying Sun, Hongbin Ding, Effect of steady magnetic field on laser-induced breakdown spectroscopic characterization of EAST-like wall materials, Journal of Nuclear Materials, 2015, 463: 927–930.

　　27. Qingmei Xiao, Ran Hai, Hongbin Ding, A. Huber, V. Philipps, N. Gierse, G. Sergienko, In-situ analysis of the first wall by laser-induced breakdown spectroscopy in the TEXTOR tokamak: Dependence on the magnetic field strength, Journal of Nuclear Materials, 2015, 463: 911–914.

　　28. Ping Liu, Hai Ran, Ding Wu, Qingmei Xiao, Liying Sun, Hongbin Ding, The Enhanced Effect of Optical Emission from Laser Induced Breakdown Spectroscopy of an Al-Li Alloy in the Presence of Magnetic Field Confinement, Plasma Science and Technology, 2015, 17: 687–692.

　　29. N. Farid, S.S. Harilal, O. El-Atwani, H. Ding and A. Hassanein, Experimental simulation of materials degradation of plasma facing components using lasers, Nuclear Fusion, 2014, 54: 012002.

　　30. N. Farid, S. S. Harilal, H. Ding, A. Hassanein, Emission features and expansion dynamics of nanosecond laser ablation plumes at different ambient pressures, Journal of Applied Physics, 2014, 115: 033107.

　　31. Cong Li, Xingwei Wu, Chenfei Zhang, Hongbin Ding, Jiansheng Hu, Guang-Nan Luo, In situ chemical imaging of lithiated tungsten using laser-induced breakdown spectroscopy, Journal of Nuclear Materials, 2014, 452: 10–15.

　　32. Cong Li, Xingwei Wu, Chenfei Zhang, Hongbin Ding, G. De Temmerman, H.J. van der Meiden, Study of deuterium retention on lithiated tungsten exposed to high-flux deuterium plasma using laser-induced breakdown spectroscopy, Fusion Engineering and Design, 2014, 89: 949–954.

　　33. Ran Hai, Ping Liu, Ding Wu, Hongbin Ding, Jing Wu, Guang-Nan Luo, Collinear double-pulse laser-induced breakdown spectroscopy as an in-situ diagnostic tool for wall composition in fusion devices, Fusion Engineering and Design, 2014, 89: 2435–2439.

　　34. Ran Hai, Xingwei Wu, Yu Xin, Ping Liu, Ding Wu, Hongbin Ding, Use of dual-pulse laser-induced breakdown spectroscopy for characterization of the laser cleaning of a first mirror exposed in HL-2A, Journal of Nuclear Materials, 2014, 447: 9–14.

　　35. Qingmei Xiao, Alexander Huber, Volker Philipps, Gennady Sergienko, Niels Gierse, Philippe Mertens, Ran Hai, Hongbin Ding, Analysis and removal of ITER relevant materials and deposits by laser ablation, Journal of Nuclear Materials, 2014, 455: 180–184.

　　36. Qingmei Xiao, Cong Li, Ran Hai, Lei Zhang, Chunlei Feng, Yan Zhou, Longwen Yan, Xuru Duan, and Hongbin Ding, High spatial resolution mapping of deposition layers on plasma facing materials by laser ablation microprobe time-of-flight mass spectroscopy, Review of Scientific Instruments, 2014, 85: 053511.

　　37. S. S. Harilal, N. Farid, J. R. Freeman, P. K. Diwakar, N. L. LaHaye, A. Hassanein, Background gas collisional effects on expanding fs and ns laser ablation plumes, Applied Physics A, 2014, 117: 319–326.

　　38. Nazar Farid, Dongye Zhao, H.Y. Oderji, Hongbin Ding, Cracking and damage behavior of tungsten under ELM’s like energy loads using millisecond laser pulses, Journal of Nuclear Materials, 2014, 463: 241–245.

　　39. Dongye Zhao, Nazar Farid, Ran Hai, Ding Wu, Hongbin Ding, Diagnostics of first wall materials in a magnetically confined fusion device by polarization-resolved laser-induced breakdown spectroscopy, Plasma Science and Technology, 2014, 16: 149–154.

　　40. 吴鼎，海然，刘平，刘佳宏，丁洪斌，基于激光诱导击穿光谱地沟油鉴别的初步探究，科学通报，2014，59：2071–2076.

　　41. Ran Hai, Nazar Farid, Dongye Zhao, Lei Zhang, Jiahong Liu, Hongbin Ding, Jing Wu, Guang-Nan Luo, Laser-induced breakdown spectroscopic characterization of impurity deposition on the first wall of a magnetic confined fusion device: Experimental Advanced Superconducting Tokamak , Spectrochimica Acta Part B, 2013, 87: 147–152.

　　42. Nazar Farid, Cong Li, Hongbei Wang, Hongbin Ding, Laser-induced breakdown spectroscopic characterization of tungsten plasma using the first, second, and third harmonics of an Nd:YAG laser, Journal of Nuclear Materials, 2013, 433: 80–85.

　　43. Nazar Farid, Hongbei Wang, Cong Li, Xingwei Wu, Hassan Yousefi Oderji, Hongbin Ding, Guang-Nan Luo, Effect of background gases at reduced pressures on the laser treated surface morphology, spectral emission and characteristics parameters of laser produced Mo plasmas, Journal of Nuclear Materials, 2013, 438: 183–189.

　　44. N. Farid, S. S. Harilal, H. Ding, and A. Hassanein, Dynamics of ultrafast laser plasma expansion in the presence of an ambient, Applied Physics Letters, 2013, 103: 191112.

　　45. N. Farid, S. S. Harilal, H. Ding, and A. Hassanein, Kinetics of ion and prompt electron emission from laser-produced plasma, Physics of Plasmas, 2013, 20: 073114.

　　46. Ran Hai, Cong Li, Hongbei Wang, Hongbin Ding, Haishan Zhuo, Jing Wu, Guang-Nan Luo, Characterization of Li deposition on the first wall of EAST using laser-induced breakdown spectroscopy, Journal of Nuclear Materials, 2013, 438: S1168–S1171.

　　47. Ran Hai, Qingmei Xiao, Lei Zhang, Hongbin Ding, Yan Zhou, Longwen Yan, Characterization and removal of co-deposition on the first mirror of HL-2A by excimer laser cleaning, Journal of Nuclear Materials, 2013, 436: 118–122.

　　48. Q. Xiao, A. Huber, G. Sergienko, B. Schweer, Ph. Mertens, A. Kubina,V. Philipps, H. Ding, Application of laser-induced breakdown spectroscopy for characterization of material deposits and tritium retention in fusion devices, Fusion Engineering and Design, 2013, 88: 1813–1817.

　　49. S. S. Harilal, N. Farid, A. Hassanein, and V. M. Kozhevin, Dynamics of femtosecond laser produced tungsten nanoparticle plumes, Journal of Applied Physics, 2013, 114: 203302.

　　50. H.J. van der Meiden, M. A. van den Berg, S. Brons, H. Ding, H.J.N. van Eck, M.H.J. ’t Hoen, J. Karhunen, T.M. de Kruif, M. Laan, C. Li, A. Lissovski, T.W. Morgan, P. Paris, K. Piip, M.J. van de Pol, R. Scannell, J. Scholten, P.H.M. Smeets, C. Spork, P.A. Zeijlmans van Emmichoven, R. Zoomers and G. De Temmerman, Laser-based diagnostics applications for plasma-surface interaction studies, Journal of Instrumentation, 2013, 8: C11011.