Characterization of dust produced during the 2021 first campaign in EAST tokamak
Characterization of dust produced during the 2021 first campaign in EAST tokamak
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2021 年 EAST 托卡马克首次活动期间产生的粉尘特征
DOI：
10.1016/j.nme.2022.101251
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发表时间：
2022-10
影响因子：
2.6
通讯作者：
Junling Chen
中科院分区：
文献类型：
--
作者：
Hongyan Pan;Rui Ding;Jiao Peng;Rong Yan;Dahuan Zhu;Junling Chen
在EAST托卡马克2021年第一次实验活动期间，通过各种方法收集并表征了尘埃。发现在中间平面端口处收集的容器内灰尘的重量从约265 mg变化到约966 mg。粉尘主要呈球状、片状、条状和不规则颗粒状，大小从微米到几毫米不等。尘埃由不同的元素组成，这些元素来自壁面调节、面向等离子体材料的侵蚀以及沉积物的剥落。从下端口K收集的粉尘含有与从容器内端口K收集的粉尘不同的元素，下端口中的Fe较多，真空容器中的Li较多。发现了不同形状的铁磁性尘埃，不同形状的铁磁性尘埃具有不同的O含量和大小。利用诊断观测窗口，首先收集了运行过程中的尘埃，并计算了局部尘埃产生率，发现随着等离子体运行的进行，局部尘埃产生率逐渐减小。
Dust has been collected and characterized by various methods during the 2021 first experimental campaign in EAST tokamak. It was found that the weight of the in-vessel dust collected at the mid-plane port varied from about 265 mg to about 966 mg. And the dust appeared mainly in the shape of spheroids, flakes, stripes and irregular-shaped particles with the sizes ranging from micrometers to several millimeters. The dust consisted of different elements, which was from the wall-conditioning, erosion of plasma-facing materials (PFMs) as well as the flaking of deposits. The dust collected from the lower port K contained different elements from those collected from the in-vessel port K, with more Fe in the lower port and more Li in the vacuum vessel. The ferromagnetic dust with different shape has been found, and different shape has different O content and size. By using the diagnostic observation window, dust was firstly collected during the campaign and the local dust production rate is calculated, which is found to decrease as the plasma operation goes.
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影响因子：
1.7
作者：
B. Gao;R. Ding;Hai Xie;L. Zeng;Ling Zhang;Baoguo Wang;Changjun Li;Dahuan Zhu;R. Yan;Junling Chen
通讯作者：
B. Gao;R. Ding;Hai Xie;L. Zeng;Ling Zhang;Baoguo Wang;Changjun Li;Dahuan Zhu;R. Yan;Junling Chen
影响因子：
3.3
作者：
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通讯作者：
M. De Angeli;L. Laguardia;G. Maddaluno;E. Perelli Cippo;D. Ripamonti;M. Apicella;C. Bressan;R. Caniello;C. Conti;F. Ghezzi;G. Grosso;G. Mazzitelli
影响因子：
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作者：
Fortuna-Zalesna, E.;Grzonka, J.;Zychor, I.
通讯作者：
Zychor, I.
影响因子：
1.7
作者：
Rubel, M.;Widdowson, A.;Zychor, I.
通讯作者：
Zychor, I.
影响因子：
2.2
作者：
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通讯作者：
P. Tolias;S. Ratynskaia;M. De Angeli;G. De Temmerman;D. Ripamonti;G. Riva;I. Bykov;A. Shalpegin;L. Vignitchouk;F. Brochard;K. Bystrov;S. Bardin;A. Litnovsky