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Radial electric field measurement in a tokamak with magnetic field ripple

E. Trier, L.-G. Eriksson, P. Hennequin, C. Fenzi, C. Bourdelle, G. Falchetto, X. Garbet, T. Aniel, F. Clairet, R. Sabot2008年被引用 32Nuclear FusionIF 3出版社

In the regions of the Tore Supra tokamak with significant ripple it is expected that a radial electric field (Er) ensures the ambipolarity of fluxes of thermal particles trapped in ripple wells. A neoclassical calculation (Connor and Hastie 1973 Nucl. Fusion13 221, Stringer 1972 Nucl. Fusion12 689) shows that Er is related to ion temperature and density gradients. The validity of this relation is investigated in a series of Tore Supra L-mode discharges without external momentum input. Doppler reflectometry measurements of fluctuations perpendicular velocity, which is dominated by the Er × B drift, are found to be in good agreement with the predicted neoclassical Er.

日本語訳

トーラ・シュプラ tokamak のリップルが顕著な領域では、リップル井戸に捕捉された熱粒子のフラックスの両極性を保証する半径方向電場(Er)が存在すると予想される。新古典論的計算(Connor and Hastie 1973 Nucl. Fusion13 221, Stringer 1972 Nucl. Fusion12 689)は、Er がイオン温度および密度勾配に関係することを示している。この関係の妥当性が、外部運動量注入のない一連のトーラ・シュプラ L モード放電において調査された。Er × B ドリフトが支配的であるゆらぎの垂直速度のドップラー反射測定による計測は、予測された新古典論的 Er と良好な一致を示すことが見出された。

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Radial electric fieldField ripple
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