M.J. Baldwin et al 2002 Nucl. Fusion 42 1318 doi:10.1088/0029-5515/42/11/305
M.J. Baldwina, R.P. Doerner, S.C. Luckhardt and R.W. Conn
Show affiliationsMeasurements 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.
52.40.Hf Plasma-material interactions; boundary layer effects
Issue 11 (November 2002)
Received 22 May 2002, accepted for publication 29 August 2002
Published 9 October 2002
M.J. Baldwin et al 2002 Nucl. Fusion 42 1318
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