ICF快点火概念中超热电子的能量输运

Supcrthcrmal Electron Energy Transport in the Fast Ignition Concept

快速点火是运用超短超强激光在常规聚变靶丸上打孔并利用其产生的超热电子内芯部输运能量来实现激光聚变点火.它将有可能大大降低对激光器能量及光束质量等方而的要求.利用超热电子的能量沉积模型.计算了在不同常现压缩驱动激光条件下.超短脉冲强激光产生的超热电子在靶丸中的能量沉积对快点火的影响.

We use an analysical model to Calculate superthcrmal electron energy deposition in the main fuel under different main compressed laser energy conditions in the fast ignition concept. It is conduced: (1) During the fast ignition process, most superthermal electron energy will be deposited near the edge of the main fuel. (2) This energy deposition is the slowing down process for higher main laser energy.