Predicting hydrogen isotope inventory in plasma-facing components during normal and abnormal operations in fusion devices

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• 作者：Alice Hu ; ^{alicehu@cityu.edu.hk" class="auth_mail" title="E-mail the corresponding author} ; Ahmed Hassanein
• 关键词：Fusion devices ; Plasma-facing components ; ITER ; Tritium retention ; ELMs
• 刊名：Journal of Nuclear Materials
• 出版年：2015
• 出版时间：October 2015
• 年：2015
• 卷：465
• 期：Complete
• 页码：582-589
• 全文大小：1164 K

文摘

Hydrogen isotope behavior and inventory in plasma-facing components (PFCs) of fusion devices are key concerns for safe, reliable, and economical operation. To accurately estimate hydrogen isotope retention and recovery in tungsten (the current leading candidate as a PFC), we have developed a model that was recently benchmarked against isotope depth profile and retention level in a tungsten target under various conditions and compared with both experimental data and simulation results. In this research, we have extended the model to include details of transient events. Therefore, one can use this model to estimate hydrogen isotope retention behavior in tungsten and potential other PFC candidates during normal operational pulse, effects of edge-localized modes (ELMs), and a possible cleaning processes scenario.