Simulation study of electron injection into plasma wake fields by colliding laser pulses using OOPIC  

作　　者：何安 高杰 朱雄伟 李大章 

机构地区：[1]Institute of High Energy Physics, the Chinese Academy of Sciences

出　　处：《Chinese Physics C》2009年第S2期177-180,共4页中国物理C（英文版）

基　　金：Supported by NSFC (10525525, 10775154, 10575114);Knowledge Innovation Funds of IHEP, CAS (H75452A0U2)

摘　　要：An electron injector concept for a laser-plasma accelerator has been developed which relies on the use of counter propagating ultrashort laser pulses. In this paper, we use OOPIC the fully self-consistent, twodimensional, particle-in-cell code to make a parameter study to determine the bunches that can be obtained through collisions of two collinear laser pulses in uniform plasma. A series of simulations show that one can obtain a short (<10fs) bunch with its charge of about 15pC, and energy spread of about 15%. We also discussed the variation of the transverse spot size of the electron bunch and found the bunch would undergo the betatron oscillations.An electron injector concept for a laser-plasma accelerator has been developed which relies on the use of counter propagating ultrashort laser pulses. In this paper, we use OOPIC the fully self-consistent, twodimensional, particle-in-cell code to make a parameter study to determine the bunches that can be obtained through collisions of two collinear laser pulses in uniform plasma. A series of simulations show that one can obtain a short (<10fs) bunch with its charge of about 15pC, and energy spread of about 15%. We also discussed the variation of the transverse spot size of the electron bunch and found the bunch would undergo the betatron oscillations.

关 键 词：LWFA optical injection colliding pulse injection electron acceleration OOPIC betatron oscillations 

分 类 号：TL501[核科学技术—核技术及应用]