Home / Store / Journals / Electronic Articles / Fusion Science and Technology / Volume 45 / Number 1 / Pages 60-64
Yoshi Hirooka, Hoju Fukushima, Noriyasu Ohno, Shuichi Takamura, Masahiro Nishikawa
Fusion Science and Technology / Volume 45 / Number 1 / Pages 60-64
Format:electronic copy (download)
This paper will report on the proof-of-principle (POP) experiments conducted to demonstrate reduced wall recycling, using a laboratory-scale test unit, constructed based on the concept of moving-surface plasma-facing component (MS-PFC). In this concept, the moving-surface exposed to edge plasmas in steady state magnetic fusion devices is continuously deposited ex-situ with a getter material, so that particle trapping capabilities can be regenerated prior to the subsequent exposure. In our previous paper, the construction details of the MS-PFC test unit and the first results in the case of titanium gettering was reported, but in the present paper preliminary results in the case of lithium gettering will be presented for comparison. Results indicate that the H light intensity used as the measure of hydrogen recycling is reduced by ~6% due to titanium gettering and by ~12% due to lithium gettering, both at steady state.
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