Li C K, Petrasso R D
Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA.
Phys Rev E Stat Nonlin Soft Matter Phys. 2006 Jan;73(1 Pt 2):016402. doi: 10.1103/PhysRevE.73.016402. Epub 2006 Jan 18.
From fundamental principles, the interaction of directed energetic electrons with hydrogenic and arbitrary-Z plasmas is analytically modeled. The effects of stopping, straggling, and beam blooming, a consequence of scattering and energy loss, are rigorously treated from a unified approach. Enhanced energy deposition occurs in the latter portion of the penetration and is inextricably linked to straggling and blooming. These effects, which have a strong Z dependence, will be important in evaluating the requirements of fast ignition and tolerable levels of electron preheat.
从基本原理出发，对定向高能电子与氢等离子体及任意原子序数（Z）的等离子体之间的相互作用进行了解析建模。对散射和能量损失导致的阻止、离散以及束流展宽效应，采用统一方法进行了严格处理。在穿透的后半部分会出现增强的能量沉积，并且它与离散和展宽有着不可分割的联系。这些具有强烈Z依赖性的效应，在评估快点火的要求以及电子预热的可容忍水平时将具有重要意义。
