The potential role of electric fields and plasma barodiffusion on the inertial confinement fusion databasea)
The potential role of electric fields and plasma barodiffusion on the inertial confinement fusion databasea)
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DOI：
10.1063/1.3577577
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发表时间：
2011-05
影响因子：
2.2
通讯作者：
P. Amendt;S. Wilks;C. Bellei;C. Li;R. Petrasso
中科院分区：
文献类型：
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作者：
P. Amendt;S. Wilks;C. Bellei;C. Li;R. Petrasso
已经报道了在直接驱动惯性约束聚变（ICF）胶囊中产生强的自生电场（GV/m）[Rygg等人，Science 319，1223（2008）; Li等人，物理修订信函100，225001（2008）]。最近提出了一种基于等离子体激波前沿上的电荷分离的对这些场的起源的候选解释[Amendt等人，Plasma Phys. Controlled Fusion 51124048（2009）]。问题是这样的电场内爆胶囊是否可以有可观察到的后果，对目标的性能。两个众所周知的异常出现在脑海中：（1）与流体动力学等效D相比，在等摩尔D3 He燃料混合物中观察到的中子亏损超过预期的2.2倍[Rygg等人，等离子体13，052702（2006）]和DT [Herrmann等人，等离子体16，056312（2009）]燃料，以及（2）当微量氩在间接驱动内爆中与D混合时类似的中子短缺[Lindl等人，等离子体11，339（2004）]。一种新的机械...
The generation of strong, self-generated electric fields (GV/m) in direct-drive, inertial-confinement-fusion (ICF) capsules has been reported [Rygg et al., Science 319, 1223 (2008); Li et al., Phys. Rev. Lett. 100, 225001 (2008)]. A candidate explanation for the origin of these fields based on charge separation across a plasma shock front was recently proposed [Amendt et al., Plasma Phys. Controlled Fusion 51 124048 (2009)]. The question arises whether such electric fields in imploding capsules can have observable consequences on target performance. Two well-known anomalies come to mind: (1) an observed ≈2× greater-than-expected deficit of neutrons in an equimolar D3He fuel mixture compared with hydrodynamically equivalent D [Rygg et al., Phys. Plasmas 13, 052702 (2006)] and DT [Herrmann et al., Phys. Plasmas 16, 056312 (2009)] fuels, and (2) a similar shortfall of neutrons when trace amounts of argon are mixed with D in indirect-drive implosions [Lindl et al., Phys. Plasmas 11, 339 (2004)]. A new mechani...