Collimated electrons generated by intense laser pulse interaction with cone-structured targets using particle simulation

被引：4
|
作者：
Wu Feng-Juan [1 ,2 ]
Zhou Wei-Min [1 ]
Shan Lian-Qiang [1 ]
Li Fang [1 ]
Liu Dong-Xiao [1 ]
Zhang Zhi-Meng [1 ]
Li Bo-Yuan [1 ]
Bi Bi [1 ]
Wu Bo [1 ]
Wang Wei-Wu [1 ]
Zhang Feng [1 ]
Gu Yu-Qiu [1 ]
Zhang Bao-Han [1 ]
机构：
[1] China Acad Engn Phys, Res Ctr Laser Fus, Sci & Technol Plasma Phys Lab, Mianyang 621900, Peoples R China
[2] Southwest Univ Sci & Technol, Joint Lab Extreme Condit Matter Properties, Mianyang 621010, Peoples R China
来源：
ACTA PHYSICA SINICA | 2014年 / 63卷 / 09期
基金：
中国国家自然科学基金;
关键词：
cone sandwich target; PIC simulation; fast electron collimation; quasi-static magnetic field; FUSION IGNITION; DENSITY; PLASMA; BEAM;
D O I：
10.7498/aps.63.094101
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Generation and propagation of fast electron bunches from interaction of short, ultra intense laser with cone-sandwich target are investigated by PIC (particle-in-cell) simulation. Results are compared with those in the interaction of the same laser parameters with cone-channel target, cone-wire target and cone target. Fast electrons generated by the interaction of intense laser with cone-sandwich target can be effectively collimated and propagated by the quasi-static strong magnetic field generated by the material surface of different densities. Compared with the other three cone-structured target, the more number and the higher energy of the fast electrons are generated by cone-sandwich target. This can well improve the energy conversion efficiency of the laser to fast electrons and the quality of fast electron bunches, which are favorable for the fast ignition energy deposition.
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页数：6
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