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Ion cyclotron heating scenarios for NET revisited

R. Koch, D. van Eester1989年被引用 4Nuclear FusionIF 3出版社

A critical review is made of the different possible ion cyclotron resonance heating (ICRH) scenarios to be envisaged for NET. Their relevance is examined with respect to both physical requirements, reactor applicability and specific NET constraints. The impact of the presence of fusion products on these methods is discussed. It is found that larger aspect ratio and operation at higher magnetic field can strongly reduce alpha particle effects. New dielectric tensor expressions relevant to such particle populations are derived; first estimates show that wave damping for realistic distribution functions can be much reduced with respect to Maxwellian results. It is concluded that the most attractive scheme is 2nd harmonic tritium heating rather than 2nd harmonic deuterium heating which is strongly modified by the presence of residual hydrogen and fusion produced alpha particles in the machine.

日本語訳

NETのために想定される様々なイオンサイクロトロン共鳴加熱(ICRH)シナリオについて批判的検討を行う。それらの妥当性は、物理的要件と炉への適用可能性の両方、およびNET特有の制約に関して調べられる。これらの方法に対する核融合生成物の存在の影響について議論する。より大きなアスペクト比とより高い磁場での運転が、アルファ粒子効果を大幅に低減できることが見出される。そのような粒子集団に関連する新しい誘電テンソル表現を導出する;最初の推定では、現実的な分布関数に対する波動減衰は、マクスウェル分布の結果に比べて大幅に減少し得ることが示される。最も魅力的なスキームは、第2高調波重水素加熱ではなく、第2高調波トリチウム加熱であると結論付けられる。後者は、装置内の残留水素および核融合生成アルファ粒子の存在によって強く影響を受ける。

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