This paper explores four different magnetic field topologies for application to spherical inertial confinement fusion implosions: axial, mirror, cusp and closed field lines. A mirror field is found to enhance the impact of magnetization over an axial field; this is because the mirror field more closely follows the hot-spot surface. A cusp field, while simple to generate, is not found to have any benefits over the tried-and-tested axial field. Closed field lines are found to be of the greatest benefit to hot-spot performance, with the simulated design undergoing a 2× increase in ion temperature before α-heating is considered. The plasma properties of the simulation with closed field lines are radically different from the unmagnetized counterpart, with electron temperatures in excess of 100 keV, suggesting that a fundamental redesign of the capsule implosion is possible if this method is pursued.
この論文は、球対称の慣性核融合爆縮に応用するための4種類の異なる磁場トポロジーを探る。鏡型磁場は軸対称磁場よりも磁化の効果を高めることが分かった。閉磁力線構造が最も熱点性能の向上に寄与し、2倍の イオン温度上昇が期待できる。この手法を追求すれば、カプセル爆縮の根本的な再設計が可能になる。