摘要
介绍了激光-等离子体相互作用产生正电子的相关实验和数值模拟研究进展。简要回顾了激光-等离子体相互作用正电子的发现过程及激光-等离子体作用产生正电子的三种物理机制;详细地叙述了激光与物质相互作用产生正电子的两类典型实验方式(即直接方式和间接方式)及相关的实验和数值模拟结果;对激光-等离子体相互作用产生正电子的研究进行了评述。从现有研究进展来看,目前理论研究和实验研究所获结论差异较大,还需要从激光设备、实验方案设计以及理论和模拟研究方面做大量细致的工作。
The history and development about the study of positrons generated by intense laser interaction withthe plasmas are introduced.The mechanisms of the positron generation are presented.Specially,the typical experimentscheme(direct and indirect)of the positron generation,including important results about the experiment and computersimulation are described systemically.Eventually,the study of positron is reviewed and summarized.At present,theconclusions obtained from theoretical research and experimental research are quite different,and a lot of detailed workneeds to be done in terms of laser equipment,experimental scheme design,and theoretical and simulation research.
作者
蔡达锋
王剑
谷渝秋
郑志坚
Cai Dafeng;Wang Jian;Gu Yuqiu;Zheng Zhijian(College of Physics and Electronic Information Engineering,Neijiang Normal College,Neijiang 641112,China;Laser Fusion Research Center,CAEP,Mianyang 621900,China)
出处
《强激光与粒子束》
CAS
CSCD
北大核心
2023年第7期68-73,共6页
High Power Laser and Particle Beams
