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Divertor pumping and other reactor application issues for H-mode

R D Stambaugh, S L Allen, N H Brooks, D N Hill, D L Hillis, A W Hyatt, G L Jackson, S Konoshima, E A Lazarus, A W Leonard1994年Plasma Physics and Controlled FusionIF 2.2出版社

We summarize results from DIII-D in regard to issues for reactor application of H-mode. Recently, DIII-D has begun to operate a cryopump (D2 pumping speed =31,000 l/s at a pressure of 2 mTorr). Initial results are very favorable for density control in H-mode. The plasma density could be reduced by 50%. Energy confinement is unchanged so the temperature rises in proportion to the density drop. Ability to access these less collisional plasmas in H-mode is favorable to current drive application. With the all-graphite wall, impurity accumulation has been eliminated. The exceedingly good confinement of VH-mode offers the possibility of retaining good confinement while radiating copious power from the plasma edge using injected noble gas impurities.

日本語訳

我々は、Hモードの炉心応用に関する課題について、DIII-Dでの結果を要約する。最近、DIII-Dは低温ポンプ(D2排気速度=2 mTorrの圧力で31,000 l/s)の運転を開始した。初期結果は、Hモードにおける密度制御に非常に有利である。プラズマ密度は50%低減可能であった。エネルギー閉じ込めは変化しないため、温度は密度低下に比例して上昇する。これらの低衝突度プラズマへのHモードでのアクセス能力は、電流駆動応用に有利である。全グラファイト壁により、不純物蓄積は排除された。VHモードの極めて優れた閉じ込めは、注入された希ガス不純物を用いてプラズマ端部から多量の放射を行いながら、優れた閉じ込めを維持する可能性を提供する。

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diii-d中精度(概要文一致)

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DivertorH-mode
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