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首页> 外文期刊>Plasma physics and controlled fusion >Progress in symmetric ICF capsule implosions and wire-array z-pinch source physics for double-pinch-driven hohlraums
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Progress in symmetric ICF capsule implosions and wire-array z-pinch source physics for double-pinch-driven hohlraums

机译：双夹点驱动的喇叭管的对称ICF胶囊内爆和线阵列z夹源物理研究进展

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摘要

Over the last several years, rapid progress has been made evaluating the double-z-pinch indirect-drive, inertial confinement fusion (ICF) high-yield target concept (Hammer et al 1999 Phys. Plasmas 6 2129). We have demonstrated efficient coupling of radiation from two wire-array-driven primary hohlraums to a secondary hohlraum that is large enough to drive a high yield ICF capsule. The secondary hohlraum is irradiated from two sides by z-pinches to produce low odd-mode radiation asymmetry. This double-pinch source is driven from a single electrical power feed (Cuneo et al 2002 Phys. Rev. Lett. 88 215004) on the 20 MA Z accelerator. The double z-pinch has imploded ICF capsules with even-mode radiation symmetry of 3.1 +/- 1.4% and to high capsule radial convergence ratios of 14-21 (Bennett et al 2002 Phys. Rev. Lett. 89 245002; Bennett et al 2003 Phys. Plasmas 10 3717; Vesey et al 2003 Phys. Plasmas 10 1854). Advances in wire-array physics at 20 MA are improving our understanding of z-pinch power scaling with increasing drive current. Techniques for shaping the z-pinch radiation pulse necessary for low adiabat capsule compression have also been demonstrated.
机译：在过去的几年中，对双Z轴间接驱动惯性约束聚变（ICF）高产量目标概念的评估已取得了快速进展（Hammer等1999 Phys。Plasmas 6 2129）。我们已经证明辐射线从两个线阵列驱动的初级大球菌到次级大球菌的辐射有效耦合，次级大球菌足以驱动高产量的ICF囊膜。 Z形夹从两侧照射次级空穴，以产生低的奇模辐射不对称性。这种双捏源由20 MA Z加速器上的单次供电（Cuneo等人，2002 Phys。Rev. Lett。88 215004）驱动。双Z夹已爆裂ICF胶囊，其偶模辐射对称性为3.1 +/- 1.4％，并且胶囊的径向会聚比高达14-21（Bennett等人2002 Phys.Rev.Lett.89245002002; Bennett等人2003 Phys.Plasmas 10 3717; Vesey等人2003 Phys.Plasmas 10 1854）。随着驱动电流的增加，线阵列物理在20 MA方面的进步正在改善我们对z捏功率缩放的理解。还已经证明了对低绝热胶囊压缩所需的z捏合辐射脉冲进行整形的技术。

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