2. プラズマ対向材料のトリチウム除染研究 (<小特集>核融合炉内外におけるトリチウムのメインテナンスと廃棄物処理)

概要

論文の詳細を見る
Tritium decontamination from plasma facing materials is reviewed. The tritium inventory in JET was effectively removed by RF-heated and Ohmic pulsing and vessel venting, while D_2 and He-O_2 glow discharge and air purge were seen to be effective tritium removal techniques in TFTR. Fakes appeared at the carbon tiles of both JET divertors, and the TFTR bumper limiter contained large tritium concentrations. UV (laser) exposure and the the use of YAG lasers seem to be promising techniques for removing tritium from tiles. Although oxygen baking is presently the most effective way for removing tritium inventory in the shadow area of a divertor, the outgases in pipes may generate some troublesome condensed matter by means of β-induced reaction.
社団法人プラズマ・核融合学会の論文
2000-10-25