High energy electron beam generation during interaction of a laser accelerated proton beam with a gas-discharge plasma

作     者：Wangwen XU Zhanghu HU Dexuan HUI Younian WANG 徐汪文;胡章虎;惠得轩;王友年

作者机构：School of PhysicsDalian University of TechnologyDalian 116024People's Republic of China 

出 版 物：《Plasma Science and Technology》 (等离子体科学和技术（英文版）)

年 卷 期：2022年第24卷第5期

页      面：75-79页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070204[理学-等离子体物理] 0702[理学-物理学] 

基　　金：supported by National Natural Science Foundation of China(Nos.12075046 and 11775042) 

主　　题：electron beam proton beam two-stream instability particle-in-cell simulation 

摘      要：The study of the interaction between ion beam and plasma is very important to the areas of inertial fusion energy and high energy density physics. With detailed one-dimensional electromagnetic particle-in-cell simulations, we investigate here the interaction of a laseraccelerated proton beam assuming an ideal monoenergetic beam with a gas-discharge *** the saturation stage of the two-stream instability excited by the proton beam, significant high energy electrons are observed, with maximum energy approaching 2 MeV, and a new twostream instability occurs between the high energy electrons and background electrons. The trajectories of plasma electrons are studied, showing the process of electron trapping and detrapping from the wakefield.