Characteristic diagnosis of supersonic gas jet target for laser wakefield acceleration with high spatial-temporal resolution Nomarski interference system

Frontiers in Physics

Physics

Jianmin Song¹  Baozhen Zhao²  Zhao Wang²  Chong Lv²  Qinxiang Li²  Jiahao Wang²  Qiushi Liu²  Guoqing Yang²  Xiaohua Zhang²  Yanlei Yang²  Mingjiang Ma³ 

[1] Department of MicroSystem Intergration, Beiing Institute of Aerospace Control Devices, Beijing, China;Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, China;High Intensity Femtosecond Laser Laboratory, Hajim School of Engineering Applied Sciences, Institute of Opitc, University of Rochester, Rochester, NY, United States;

关键词: supersonic gas jet;    laser wakefield acceleration;    optical diagnosis;    spatial-temporal resolution;    Nomarski interference system;   

DOI  :  10.3389/fphy.2023.1203946

 received in 2023-04-11, accepted in 2023-07-20,  发布年份 2023

来源: Frontiers

【 摘 要 】

Gas targets hold distinctive significance and advantages in the field of laser-matter interaction. As a major type of gas targets, supersonic gas target is one of the most commonly used targets for laser wakefield acceleration (LWFA). The temporal-spatial resolution study of it could provide valuable data references for the LWFA experiment. In this work, a Nomarski interference system with high spatial-temporal resolution was set up to diagnose the jet process of supersonic gas jet target. The formation process of supersonic gas jet under different jet durations, different injection positions and different gas back pressures was studied. It is beneficial to determine the more optimized time and position of laser injection into target when conducting LWFA experiments. Therefore, the quality of the obtained electron beam and radiation source can be effectively improved.

【 授权许可】

Unknown   
Copyright © 2023 Liu, Ma, Zhang, Lv, Song, Wang, Yang, Yang, Wang, Li and Zhao.