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Confinement of fusion produced MeV ions in the DIII-D tokamak

H.H. Duong, W.W. Heidbrink1993年被引用 72Nuclear FusionIF 3出版社

The behaviour of tritons and 3He ions produced in deuterium-deuterium fusion reactions is studied using the d(t, n)α and d(3He, p)α fusion reactions. Fusion produced MeV ions exhibit classical behaviour in high field (BT ≳ 1.0 T) discharges, including the new class of 'very high' confinement plasmas. However, anomalous behaviour is observed in discharges with strong sawtooth, fishbone or toroidicity induced Alfven eigenmode activity. For the high field discharges without strong MHD activity, the data imply an effective diffusion coefficient smaller than ≈ 0.1 m2/s, but in the presence of strong MHD activity the effective diffusion of the MeV ions exceeds 1 m2/s

日本語訳

重水素-重水素核融合反応で生成される三重陽子と³Heイオンの挙動を、d(t,n)αおよびd(³He,p)α核融合反応を用いて研究する。核融合で生成されるMeVイオンは、高磁場(BT ≧ 1.0 T)放電において古典的な挙動を示し、これには新しいクラスの「超高」閉じ込めプラズマも含まれる。しかしながら、強いサソリ状振動、フィッシュボーン不安定性、またはトロイダルアルフヴェン固有モード活動を伴う放電では、異常な挙動が観測される。強いMHD活動を伴わない高磁場放電では、データは実効拡散係数が約0.1 m²/s未満であることを示唆するが、強いMHD活動の存在下では、MeVイオンの実効拡散係数は1 m²/sを超える。

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diii-d高精度(タイトル一致)

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DIII-D
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