Electric and magnetic field generation and target heating by laser-generated fast electrons

被引：90

作者：

Davies, JR ^{[1
]}

机构：

[1] Univ Tecn Lisboa, GoLP, Inst Super Tecn, P-1049001 Lisbon, Portugal

来源：

PHYSICAL REVIEW E | 2003年 / 68卷 / 05期

关键词：

D O I：

10.1103/PhysRevE.68.056404

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The electric and magnetic fields generated by a beam of fast electrons in a conductor are calculated analytically, including the change in resistivity due to Ohmic heating. It is assumed that the resistivity has an arbitrary power law dependence on temperature, the fast electron current density is fixed (rigid beam), charge neutralization is instantaneous, and that magnetic diffusion is negligible. The implications for high-intensity laser-solid interactions are discussed. The minimum fast electron density for fast ignition by Ohmic heating is given, and found to be unrealistically high.

引用

页码：564041 / 564047

页数：7

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