ICRF boronization - A new technique towards high efficiency wall coating for superconducting tokamak reactors

被引：80

作者：

Li, JG ^{[1
]}

Zhao, YP ^{[1
]}

Gu, XM ^{[1
]}

Li, CF ^{[1
]}

Wan, BN ^{[1
]}

Zhang, XD ^{[1
]}

Luo, JR ^{[1
]}

Gong, XZ ^{[1
]}

Xie, JE ^{[1
]}

Wan, YX ^{[1
]}

Qin, PJ ^{[1
]}

Wang, XM ^{[1
]}

Meng, YD ^{[1
]}

Li, SF ^{[1
]}

Gao, X ^{[1
]}

Yang, Y ^{[1
]}

Xue, DY ^{[1
]}

Mao, YZ ^{[1
]}

Den, X ^{[1
]}

Chen, L ^{[1
]}

Fang, YC ^{[1
]}

Yin, FX ^{[1
]}

Liu, SX ^{[1
]}

Yang, XK ^{[1
]}

Xu, DZ ^{[1
]}

Ding, JY ^{[1
]}

Jie, YX ^{[1
]}

Zhao, QC ^{[1
]}

Mao, JS ^{[1
]}

Zhang, SY ^{[1
]}

Zhao, JY ^{[1
]}

Hu, JS ^{[1
]}

Fan, HY ^{[1
]}

Wei, MS ^{[1
]}

Lin, BL ^{[1
]}

Wang, GX ^{[1
]}

De Fang, Y ^{[1
]}

Shen, WC ^{[1
]}

机构：

[1] Acad Sinica, Inst Plasma Phys, Hefei 230031, Peoples R China

来源：

NUCLEAR FUSION | 1999年 / 39卷 / 08期

关键词：

D O I：

10.1088/0029-5515/39/8/302

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

A new technique for wall conditioning that will be especially useful for future larger superconducting tokamaks, such as ITER, has been successfully developed and encouraging results have been obtained. Solid carborane powder, which is non-toxic and non-explosive, was used. Pulsed RF plasma was produced by a non-Faraday shielding RF antenna with RF power of 10 kW. The ion temperature was about 2 keV with a toroidal magnetic field of 1.8 T and a pressure of 3 x 10(-1) Pa. Energetic ions broke up the carborane molecules, and the resulting boron ions struck and were deposited on the first wall. In comparison with glow discharge cleaning boronization, the B/C coating film shows higher adhesion, more uniformity and longer lifetime during plasma discharges. The plasma performance was improved after ICRF boronization.

引用

页码：973 / 977

页数：5

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