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A theoretical study of ICRF effects on multiple-mirror confinement

K.J. Doniger, M.A. Lieberman, A.J. Lichtenberg1985年被引用 3Nuclear FusionIF 3出版社

The improvements in multi-mirror confinement due to an asymmetrically applied ion cyclotron resonance field (ICRF) are determined. The resonance field is used to selectively reflect ions that travel away from the centre of the device, thus creating a net ion drift towards the centre. The ICRF effects in heating and scattering the ions and modifying the loss cone geometry are determined in detail. A onedimensional, non-ignited (finite Q = fusion power/recirculating power) model of a multiple-mirror system is used to investigate confinement. Various scaling laws are numerically derived and compared to those of a symmetric system without ICRF. Radial diffusion due to classical collisions and ICRF effects is calculated. A 21-cell machine with a peak field of 280 kG and Q = 5 is reduced from 845 m to 580 m in length with the addition of the asymmetric ICRF. The total fusion power generated by the system is reduced from 8 to 6.3 GW.

日本語訳

多ミラー閉じ込めにおける非対称に印加されたイオンサイクロトロン共鳴(ICRF)場による改善効果を決定した。共鳴場を用いて、装置中心から離れる方向に移動するイオンを選択的に反射させ、それによってイオンの中心方向への正味のドリフトを生じさせる。イオンの加熱と散乱、および損失円錐の形状変更におけるICRFの効果を詳細に決定した。1次元の非点火(有限Q = 核融合出力/再循環電力)多ミラー系モデルを用いて閉じ込めを調査した。様々なスケーリング則を数値的に導出し、ICRFを用いない対称系のものと比較した。古典的衝突による動径方向拡散とICRFの効果を計算した。ピーク磁場280 kG、Q = 5の21セル装置では、非対称ICRFの付加により、長さが845 mから580 mに短縮された。システムの総核融合出力は8 GWから6.3 GWに低減された。

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