Real time wall conditioning with lithium powder injection in long pulse H-mode plasmas in EAST with tungsten divertor
Real time wall conditioning with lithium powder injection in long pulse H-mode plasmas in EAST with tungsten divertor
复制标题
在 EAST 中使用钨偏滤器在长脉冲 H 模式等离子体中注入锂粉进行实时壁调节
DOI:
10.1016/j.nme.2019.02.029
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发表时间:
2019-05
影响因子:
2.6
通讯作者:
Gong X Z
中科院分区:
文献类型:
--
作者:
Sun Z;Maingi R;Hu J S;Xu W;Zuo G Z;Yu Y W;Wu C R;Huang M;Meng X C;Zhang L;Wang L;Mao S T;Ding F;Mansfield D K;Canik J;Lunsford R;Bortolon A;Gong X Z
Real-time lithium powder injection has been applied to long-pulse (>30 s) H-mode plasmas in EAST. This replenishes the active lithium surface that is routinely consumed by plasma-wall interactions. The real-time injection of Li powder into long H-mode discharges effectively suppresses impurity influx and controls recycling on EAST, with an ITER-like tungsten upper divertor. With lithium powder injection, the concentrations W, Mo, and C were reduced by 50% compared to ELMy H-mode discharges. During lithium injection, two effects play a role in the suppression of impurities influx: a reduced divertor temperature and heat flux and hence reduced erosion, and impurity trapping via deposition of a Li film onto plasma-facing surfaces. The ‘fresh’ injected lithium replenishes the film deposited during daily morning evaporation, restoring the wall's pumping capability. Thus, a measurable reduction in the global recycling coefficient was observed.
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影响因子:
1.5
作者:
Canik J M;Sun Z;Hu J S;Zuo G Z;Xu W;Huang M;Wang L;Xu J;Zhang T;Maingi R;Lunsford R;Diallo A;Mansfield D;Osborne T;Tritz K
通讯作者:
Tritz K
影响因子:
3.3
作者:
Maingi R;Hu J S;Sun Z;Tritz K;Zuo G Z;Xu W;Huang M;Meng X C;Canik J M;Diallo A;Lunsford R;Mansfield D K;Osborne T H;Gong X Z;Wang Y F;Li Y Y
通讯作者:
Li Y Y
影响因子:
3.3
作者:
Zhang, X. J.;Zhu, S. Z.;Guo, H. Y.;Chen, R.;Ding, S.;Gan, K. F.;Gao, X.;Gong, X. Z.;Jiang, M.
通讯作者:
Jiang, M.
影响因子:
3.3
作者:
A. Kallenbach;R. Dux;M. Mayer;R. Neu;T. Pütterich;V. Bobkov;J. Fuchs;T. Eich;L. Giannone
通讯作者:
A. Kallenbach;R. Dux;M. Mayer;R. Neu;T. Pütterich;V. Bobkov;J. Fuchs;T. Eich;L. Giannone
影响因子:
2.9
作者:
Yu Yaowei;Wang Liang;Cao Bin;Wang Houyin;Hu Jiansheng
通讯作者:
Hu Jiansheng