Laboratory experiment on lithium chemistry and its application to effective wall conditioning

被引：15

作者：

Kato, S ^{[1
]}

Watanabe, M ^{[1
]}

Toyoda, H ^{[1
]}

Sugai, H ^{[1
]}

机构：

[1] Nagoya Univ, Dept Elect Engn, Chikusa Ku, Nagoya, Aichi 4648603, Japan

来源：

JOURNAL OF NUCLEAR MATERIALS | 1999年 / 266卷

关键词：

lithium; wall conditioning; carbon impurities; TFTR;

D O I：

10.1016/S0022-3115(98)00889-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Laboratory studies on the physical chemistry of lithium wall conditioning effects observed in fusion reactors are reported, focusing on a role of lithium in dramatic decrease in carbon impurities in TFTR. Auger depth analysis of lithium-deposited graphite shows deep intercalation of lithium into graphite at room temperature. Helium ion bombardment (150-200 eV) on the lithium-saturated graphite leads to preferential sputtering of lithium and reduction of the net sputtering yield of carbon by an order of magnitude. Finally, general precautions to achieve reproducible lithium effects in fusion machines are described. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：406 / 411

页数：6

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