From October 18th to 20th, the "Asian Symposium on Laser Induced Breakdown Spectroscopy 2021", sponsored by the LIBS Committee of the Optical Engineering Society of China and hosted by the Ocean University of China, was held in Qingdao, with delegates covering 12 countries and nearly 300 offline participants. Faculty and students of the School of Physics of Dalian University of Technology participated in the conference and won a number of academic awards. Professor Ding Hongbin won the "Outstanding Contribution Award in the Field of LiBS in China", Associate Professor Li Cong won the "Youth Researcher Best Oral Presentation Award", and Doctoral Student Wu Huace won the "Best Poster Presentation Award".
During the conference, the LIBS Committee of the Chinese Optical Engineering Society held a celebration of the 10th anniversary of LibS in China and awarded the "China LIBS Outstanding Contribution Award" to recognize the scholars who have made outstanding contributions to the prosperity and development of LiBS in China in the past decade.
At the ASLIBS2021 conference, Associate Professor Li Cong of the School of Physics gave a conference report "Plasma-wall interaction study on tungsten divertor by in situ LIBS system in EAST tokamak" and won the "Youth Researcher Best Oral Presentation". This paper focuses on the LIBS wall element diagnostic technology developed by Dalian University of Technology in recent years and its research progress in the EAST tokamak partial filter PWI in situ online research, which realizes the breakthrough of the real-time in situ wall diagnosis system of large-scale tokamak fusion device from scratch, and provides key data support for the in-depth development of the PWI problem of the fusion device.
At the same time, Wu Huace, a doctoral student co-supervised by Ding Hongbin and Li Cong, won the "Best Poster Presentation Award for Students". Wu Huace poster titled "Characterization of laser-induced breakdown spectroscopy on W/Mo/C at variable ablation angles in a vacuum", which aims at the key problems of LIBS application in the field of fusion, conducts research on the influence of laser ablation angle on LIBS spectroscopy, and reveals the spatio-temporal evolution characteristics of plasma with ablation angle. Provide angle calibration data support for LIBS online diagnostic EAST Tokamak bias filter curved target plates.
The work corresponding to the winning poster was highly recognized by the selected experts, and the relevant results were published in the form of cover articles in the top journal of Spectroscopy, Journal of Analytical Atomic Spectrometry (2021 JCR-Q1, IF: 4.023). (Author: Li Cong Editor: Qin Boyu)