PERFORMANCE OF JT-60 DIVERTOR PLATES

被引：11

作者：

ANDO, T ^{[1
]}

TAKATSU, H ^{[1
]}

NAKAMURA, H ^{[1
]}

YAMAMOTO, M ^{[1
]}

KODAMA, K ^{[1
]}

ARAI, T ^{[1
]}

SHIMIZU, M ^{[1
]}

OKU, T ^{[1
]}

ETO, M ^{[1
]}

FUKAYA, K ^{[1
]}

机构：

[1] JAPAN ATOM ENERGY RES INST,TOKAI RES ESTAB,TOKAI,IBARAKI 31911,JAPAN

来源：

JOURNAL OF NUCLEAR MATERIALS | 1991年 / 179卷

关键词：

D O I：

10.1016/0022-3115(91)90095-O

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Operational experiences on the performance and material behavior of the JT-60 divertor plates are presented. The outside X-point operation using TiC-coated Mo (TiC/Mo) plates was performed with absorbed power up to 20 MW and duration of 1 s without degradation of the plasma performance by sweeping the separatrix to control the surface temperature below the melting point. The use of graphite divertor plates extended the absorbed power up to 25 MW with duration of 4 s in the lower X-point operation. However, the graphite was eroded and redeposited on the divertor plates and the carbon content in the plasma was increased compared to the outer X-point operation with carbon tiles. A few lower graphite tiles were seriously damaged and radioactivated. Improvements in thermal shock resistance and erosion characteristics of the graphite are necessary. High heat concentration at tile edges and disruption-induced heat loads should be avoided in the future devices.

引用

页码：339 / 343

页数：5

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