Deuterium retention in liquid lithium
Deuterium retention in liquid lithium
复制标题
DOI：
10.1088/0029-5515/42/11/305
复制
发表时间：
2002-11
期刊：
影响因子：
3.3
通讯作者：
M. Baldwin;R. Doerner;S. Luckhardt;R. Conn
中科院分区：
文献类型：
--
作者：
M. Baldwin;R. Doerner;S. Luckhardt;R. Conn
本文报道了液态锂暴露于氘等离子体的样品中氘保留量的测量。在6?1019?4?范围内测量了等离子体离子剂量的保留率。1022d原子，暴露温度在523和673之间？K采用热解吸光谱法。结果与所有氘离子完全吸收入射到液态金属表面是一致的，并且发现在探测范围内与液态锂的温度无关。充分吸收，与非常低的再循环相一致，一直持续到样品在体积上转化为氘化锂。这种情况发生在暴露温度下，暴露期间的气体压力既低于也略高于Li中LiD相应的分解压力。
Measurements of deuterium retention in samples of lithium exposed in the liquid state to deuterium plasma are reported. Retention was measured as a function of plasma ion dose in the range 6?1019?4?1022 D atoms and exposure temperature between 523 and 673?K using thermal desorption spectrometry. The results are consistent with the full uptake of all deuterium ions incident on the liquid metal surface and are found to be independent of the temperature of the liquid lithium over the range explored. Full uptake, consistent with very low recycling, continues until the sample is volumetrically converted to lithium deuteride. This occurs for exposure temperatures where the gas pressure during exposure was both below and slightly above the corresponding decomposition pressure for LiD in Li.