Performance Scaling in Magnetized Liner Inertial Fusion Experiments.
Performance Scaling in Magnetized Liner Inertial Fusion Experiments.
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DOI：
10.1103/physrevlett.125.155002
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发表时间：
2020-10
影响因子：
8.6
通讯作者：
M. Gomez;S. Slutz;C. Jennings;D. Ampleford;M. Weis;C. Myers;D. Yager-Elorriaga;K. Hahn;S. Hansen;E. Harding;A. Harvey-Thompson;D. Lamppa;M. Mangan;P. Knapp;T. Awe;G. Chandler;G. Cooper;J. Fein;M. Geissel;M. Glinsky;William E. Lewis;C. Ruiz;D. E. Ruiz;M. Savage;P. Schmit;I. Smith;J. Styron;J. Porter;B. Jones;T. Mattsson;K. Peterson;G. Rochau;D. Sinars
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文献类型：
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作者：
M. Gomez;S. Slutz;C. Jennings;D. Ampleford;M. Weis;C. Myers;D. Yager-Elorriaga;K. Hahn;S. Hansen;E. Harding;A. Harvey-Thompson;D. Lamppa;M. Mangan;P. Knapp;T. Awe;G. Chandler;G. Cooper;J. Fein;M. Geissel;M. Glinsky;William E. Lewis;C. Ruiz;D. E. Ruiz;M. Savage;P. Schmit;I. Smith;J. Styron;J. Porter;B. Jones;T. Mattsson;K. Peterson;G. Rochau;D. Sinars
我们目前的实验结果，从第一个系统的研究与驱动参数的磁惯性聚变概念的性能缩放。在磁化衬管惯性聚变实验中，燃烧平均离子温度加倍到3.1 keV，初级氘-氘中子产额增加了一个数量级以上，达到1.1×10^{13}（2 kJ氘氚当量）通过同时增加外加磁场（从10.4到15.9 T）、激光预热能量（从0.46到1.2 kJ）和电流耦合（从16到20 MA）。初始磁场和激光预热能量的单独参数扫描显示了预期的趋势，证明了磁绝缘的重要性以及能斯特效应对该概念的影响。驱动电流扫描表明，目前的实验操作接近点，内爆稳定性是一个限制因素的性能，证明需要提高燃料压力的驱动电流增加。捕捉这些实验趋势的模拟表明，另一个数量级的增加，在Z设施的产量是可能的输入参数的额外增加。
We present experimental results from the first systematic study of performance scaling with drive parameters for a magnetoinertial fusion concept. In magnetized liner inertial fusion experiments, the burn-averaged ion temperature doubles to 3.1 keV and the primary deuterium-deuterium neutron yield increases by more than an order of magnitude to 1.1×10^{13} (2 kJ deuterium-tritium equivalent) through a simultaneous increase in the applied magnetic field (from 10.4 to 15.9 T), laser preheat energy (from 0.46 to 1.2 kJ), and current coupling (from 16 to 20 MA). Individual parametric scans of the initial magnetic field and laser preheat energy show the expected trends, demonstrating the importance of magnetic insulation and the impact of the Nernst effect for this concept. A drive-current scan shows that present experiments operate close to the point where implosion stability is a limiting factor in performance, demonstrating the need to raise fuel pressure as drive current is increased. Simulations that capture these experimental trends indicate that another order of magnitude increase in yield on the Z facility is possible with additional increases of input parameters.