Flaking of co-deposited hydrogenated carbon layers on the TFTR limiter
Flaking of co-deposited hydrogenated carbon layers on the TFTR limiter
复制标题
TFTR 限制器上共沉积氢化碳层的剥落
DOI：
10.1088/0029-5515/39/9/301
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发表时间：
1999
期刊：
影响因子：
3.3
通讯作者：
R. Barry
中科院分区：
文献类型：
--
作者：
C. Skinner;C. Gentile;M. Menon;R. Barry
最近在TFTR中观察到内部限制器瓦片上的共沉积层剥落。这一现象是意料之外的，自1997年4月4日停止等离子体作业以来一直发生。剥落影响约15%的可观察到的瓷砖，并出现在各向同性石墨，但不是在碳纤维复合材料瓷砖。报道了薄片的照片图像和限制器几何形状的精确测量。氚在共沉积层中的可动性是未来DT反应堆安全分析中的一个重要因素。一项分析薄片和瓷砖的计划正在进行中。
Flaking of co-deposited layers on the inner limiter tiles was recently observed in TFTR. This phenomenon was unexpected and has occurred since the termination of plasma operations on 4 April 1997. Flaking affects approximately 15% of the observable tiles and appears on isotropic graphite but not on carbon fibre composite tiles. Photographic images of the flakes and precise measurements of the limiter geometry are reported. The mobilizability of tritium retained in co-deposited layers is an important factor in safety analyses of future DT reactors. A programme to analyse the flakes and tiles is underway.