Study of plasma-surface interaction at the GOL-3 facility
Study of plasma-surface interaction at the GOL-3 facility
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DOI：
10.1016/j.fusengdes.2016.12.019
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发表时间：
2017
影响因子：
1.7
通讯作者：
A. Shoshin;A. Arakcheev;A. Arzhannikov;A. Burdakov;I. Ivanov;A. Kasatov;K. Kuklin;S. Polosatkin;V. Postupaev;S. Sinitsky;A. Vasilyev;L. Vyacheslavov
中科院分区：
文献类型：
--
作者：
A. Shoshin;A. Arakcheev;A. Arzhannikov;A. Burdakov;I. Ivanov;A. Kasatov;K. Kuklin;S. Polosatkin;V. Postupaev;S. Sinitsky;A. Vasilyev;L. Vyacheslavov
本文介绍了在GOL-3装置的多镜阱中进行的等离子体-表面相互作用和等离子体负载下材料行为的实验研究。在PSI的实验中，提取的等离子体流中的能量密度从0.5到30 MJ/m2变化。近表面等离子体的参数测量的一组诊断进行审查。分析了暴露于等离子体的靶的表面图案。腐蚀深度取决于能量负荷--在0.5和30 MJ/m2时，腐蚀深度相应地从0增加到600 μm。讨论了石墨和钨表面形貌的开裂和演变。石墨的脆性破坏的焓（10 kJ/g），这决定了与带电粒子通量大穿透深度照射的目标的体损伤的阈值，被确定。比较不同的设施PSI的研究。热流密度是影响靶面烧蚀的关键因素。
The review presents experimental studies of plasma-surface interaction and materials behavior under plasma loads done in the multiple-mirror trap of the GOL-3 facility. In the experiments for the PSI, the energy density in the extracted plasma stream varies from 0.5 to 30 MJ/m2. Parameters of near-surface plasma measured by a set of diagnostics are reviewed. Surface patterns of targets exposed to the plasma are analyzed. The erosion depth depends on the energy loads—it rises from 0 to 600 μm at 0.5 and 30 MJ/m2, correspondingly. Cracking and evolution of graphite and tungsten surface morphology are discussed. The enthalpy of brittle destruction of graphite (10 kJ/g), which determines the threshold of bulk damage of targets irradiated with a charged-particle flux with large penetration depth, was determined. Comparison of different facilities for PSI studies are presented. Heat flux play a key role to the target surface erosion.