Characterization of deuterium retention and co-deposition of fuel with lithium on the divertor tile of EAST using laser induced breakdown spectroscopy
Characterization of deuterium retention and co-deposition of fuel with lithium on the divertor tile of EAST using laser induced breakdown spectroscopy
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使用激光诱导击穿光谱法表征 EAST 偏滤器瓦上的氘保留和燃料与锂的共沉积
DOI：
10.1016/j.jnucmat.2014.12.064
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发表时间：
2015-08
影响因子：
3.1
通讯作者：
Hongbin Ding
中科院分区：
文献类型：
--
作者：
Xingwei Wu;Guang-Nan Luo;Jiansheng Hu;Hongbin Ding
激光诱导击穿光谱 (LIBS) 系统已开发出来，用于测量和监测实验先进超导托卡马克 (EAST) 等离子体材料 (PFM) 的成分演变。作为原理实验的必要性和重要证明，实验室实验中对EAST偏滤器瓦的锂氘共沉积层诊断进行了LIBS分析。氘保留的分布是从偏滤器瓦片中 0.5–4 μm 的深度获得的。锂-氘共沉积层中氘/氢浓度比估计为 0.17 ± 0.02。此外，锂和氘的深度剖面行为表明，偏滤器瓦中的氘保留来自EAST氘放电过程中的锂-氘共沉积过程。这项工作将增进对氘保留和锂-氘共沉积机制的理解，并为优化 LIBS 系统提供指导，这将成为 EAST 2014 活动中独特且有用的诊断方法。
A laser induced breakdown spectroscopy (LIBS) system has been developed to measure and monitor the composition evolution on plasma facing materials (PFMs) of Experimental Advanced Superconducting Tokamak (EAST). As a necessity and important proof of principle experiment, LIBS analysis has been performed for lithium–deuterium co-deposition layer diagnosis of EAST divertor tiles in lab experiments. The distribution of deuterium retention has been obtained from the depth of 0.5–4 μm in the divertor tiles. The deuterium/hydrogen concentration ratio was estimated as 0.17 ± 0.02 in lithium–deuterium co-deposition layer. Moreover, the depth profile behaviors of lithium and deuterium indicate that the deuterium retention in divertor tile came from lithium–deuterium co-deposition processes during deuterium discharge in EAST. This work would improve the understanding of deuterium retention and lithium–deuterium co-deposition mechanism and give a guidance to optimize the LIBS system which will be a unique and useful diagnostic approach in EAST 2014-campaign.
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影响因子：
1.7
作者：
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DOI：
10.1016/j.sab.2013.05.010
发表时间：
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期刊：
Spectrochimica Acta Part B: Atomic Spectroscopy
影响因子：
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作者：
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影响因子：
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影响因子：
1.7
作者：
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