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Computer modelling of the tokamak scrape-off layer including secondary-electron emission and sheath potential at the limiter

G. Fuchs, A. Nicolai1980年被引用 15Nuclear FusionIF 3出版社

The charged-particle and energy fluxes to the limiter of a tokamak are calculated and introduced as specific particle and energy sink terms into transport-code calculations. This provides a possibility of obtaining physical boundary conditions in the scrape-off layer. Secondary-electron emission affects, in particular, the electron temperature, the sheath voltage in front of the limiter, and, hence, the energy flux. Results are discussed; within error limits they agree with recent measurements (e.g. on PLT and DITE).

日本語訳

トカマクのリミッタへの荷電粒子およびエネルギーフラックスを計算し、輸送コード計算における特定の粒子およびエネルギーシンク項として導入する。これにより、スクレイプオフ層における物理的境界条件を得る可能性が提供される。二次電子放出は、特に電子温度、リミッタ前方のシース電圧、したがってエネルギーフラックスに影響を与える。結果について考察する。誤差範囲内で、それらは最近の測定値(例えばPLTおよびDITEでの測定値)と一致する。

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Scrape-off layerPlasma sheathLimiter
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