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Forces between plasma, vessel and TF coils during AVDEs at JET

V. Riccardo, P. Noll, S.P. Walker2000年被引用 61Nuclear FusionIF 3出版社

In JET, during some vertical displacement events (VDEs), the plasma current and position are toroidally asymmetric. These events are referred to as asymmetric VDEs (AVDEs). Analysis of the interactions among the current carrying systems reveals that the repelling force between the plasma and the vessel is of little significance in asymmetric events, even if it is the main symmetric repelling force. The sideways force acting on the vessel is shown to be due mainly to the interaction with the toroidal field of the asymmetric circulation of currents in the wall. The asymmetric current path in the vessel is then calculated analytically for a simplified geometry and used together with experimental data to estimate the sideways force on the vessel.

日本語訳

JETにおいて、いくつかの垂直変位事象(VDE)の間、プラズマ電流と位置はトロイダル方向に非対称である。これらの事象は非対称VDE(AVDE)と呼ばれる。電流を運ぶ系の間の相互作用の解析により、プラズマと容器の間の反発力は、対称的な主反発力であっても、非対称事象ではほとんど重要でないことが明らかになる。容器に作用する横方向の力は、主に壁内の非対称な電流循環とトロイダル磁場との相互作用によるものであることが示される。容器内の非対称電流経路は、単純化された幾何学形状に対して解析的に計算され、実験データとともに用いて、容器に作用する横方向の力を推定する。

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