Generation of Ultrahigh-Velocity Collisionless Electrostatic Shocks Using an Ultra-Intense Laser Pulse Interacting with Foil-Gas Target  

作　　者：Shu-Kai He Jin-Long Jiao Zhi-Gang Deng Feng Lu Lei Yang Fa-Qiang Zhang Ke-Gong Dong Wei Hong Zhi-Meng Zhang Bo Zhang Jian Teng Wei-Min Zhou Yu-Qiu Gu 贺书凯;矫金龙;邓志刚;卢峰;杨雷;张发强;董克攻;洪伟;张智猛;张博;滕建;周维民;谷渝秋(Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900;School of Physics,Peking University,Beijing 100871)

机构地区：[1]Science and Technology on Plasma Physics Laboratory,Research Center of Laser Fusion,China Academy of Engineering Physics,Mianyang 621900 [2]School of Physics,Peking University,Beijing 100871

出　　处：《Chinese Physics Letters》2019年第10期45-48,共4页中国物理快报（英文版）

基　　金：Supported by the Science Challenge Project under Grant Nos TZ2018005 and TZ2016005;the National Key Research and Development Program of China under Grant No 2016YFA0401100

摘　　要：Ultra high-velocity collisionless shocks are generated using an ultra-intense laser interacting with foil-gas target,which consists of copper foil and helium gas.The energy of helium ions accelerated by shock and the proton probing image of the shock electrostatic field show that the shock velocity is 0.02c,where c is the light speed.The numerical and theory studies indicate that the collisionless shock velocity exceeding 0.1c can be generated by a laser pulse with picosecond duration and an intensity of 1020 W/cm2.This system may be relevant to the study of mildly relativistic velocity collisionless shocks in astrophysics.Ultra high-velocity collisionless shocks are generated using an ultra-intense laser interacting with foil-gas target,which consists of copper foil and helium gas.The energy of helium ions accelerated by shock and the proton probing image of the shock electrostatic field show that the shock velocity is 0.02c,where c is the light speed.The numerical and theory studies indicate that the collisionless shock velocity exceeding 0.1 c can be generated by a laser pulse with picosecond duration and an intensity of 1020 W/cm2.This system may be relevant to the study of mildly relativistic velocity collisionless shocks in astrophysics.

关 键 词：collision shock EXCEEDING 

分 类 号：O57[理学—粒子物理与原子核物理]