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Tritium transport studies with use of the ISEP NPA during tritium trace experimental campaign on JET

M I Mironov, V I Afanasyev, A Murari, M Santala, P Beaumont, JET-EFDA contributors2010年Plasma Physics and Controlled FusionIF 2.2出版社

The neutral particle analyzer (NPA) known as ISEP (Ion SEParator) was applied to measure the tritium neutral flux during the tritium trace experiment (TTE) on JET. The energy dependence (in the 5–28 keV energy range) of the tritium neutral flux rise time after a short ∼100 ms tritium gas puff into deuterium plasmas has been observed for the first time. The dependence has been interpreted as being due to the penetration of the tritium ions from the plasma boundary into the core and has been used for the calculation of the tritium diffusion coefficient and convective velocity values.

日本語訳

中性粒子分析器(NPA)であるISEP(イオン分離器)を適用し、JETにおけるトリチウムトレース実験(TTE)中のトリチウム中性粒子フラックスを測定した。重水素プラズマへの約100msの短いトリチウムガスパフ後のトリチウム中性粒子フラックス立ち上がり時間のエネルギー依存性(5–28 keVエネルギー範囲)が初めて観測された。この依存性は、トリチウムイオンがプラズマ境界からコアへ浸透することに起因すると解釈され、トリチウムの拡散係数および対流速度の値の計算に用いられた。

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