Lawrence Livermore National Laboratory, Livermore, California 94551, USA.
Phys Rev Lett. 2010 Sep 10;105(11):115005. doi: 10.1103/PhysRevLett.105.115005.
The observation of large, self-generated electric fields (≥10(9) V/m) in imploding capsules using proton radiography has been reported [C. K. Li, Phys. Rev. Lett. 100, 225001 (2008)]. A model of pressure gradient-driven diffusion in a plasma with self-generated electric fields is developed and applied to reported neutron yield deficits for equimolar D3He [J. R. Rygg, Phys. Plasmas 13, 052702 (2006)] and (DT)3He [H. W. Herrmann, Phys. Plasmas 16, 056312 (2009)] fuel mixtures and Ar-doped deuterium fuels [J. D. Lindl, Phys. Plasmas 11, 339 (2004)]. The observed anomalies are explained as a mild loss of deuterium nuclei near capsule center arising from shock-driven diffusion in the high-field limit.
使用质子射线照相术已经观察到在向内崩溃的胶囊中产生的大的自生电场（≥10(9) V/m）[C. K. Li, Phys. Rev. Lett. 100, 225001 (2008)]。已经开发并应用了一种自生电场驱动的压力梯度扩散模型，用于解释报道的等摩尔 D3He [J. R. Rygg, Phys. Plasmas 13, 052702 (2006)]和 (DT)3He [H. W. Herrmann, Phys. Plasmas 16, 056312 (2009)]燃料混合物以及 Ar 掺杂氘燃料[J. D. Lindl, Phys. Plasmas 11, 339 (2004)]中的中子产额不足的异常现象。观察到的异常现象被解释为由于在高场极限下的冲击波驱动扩散，在胶囊中心附近轻微损失氘核。
