Speaker
Jiancai Xu
Description
See the full Abstract at http://ocs.ciemat.es/EPS2018ABS/pdf/P5.2024.pdf
Generation of high-charge electron bunch and ultrafast gamma-ray beam
in laser-plasma accelerator
Jiancai Xu1, Baifei Shen1, 2, 3, Tongjun Xu1, Shun Li1, Yong Yu1, Jinfeng Li1, Xinliang
Wang1, Xiaoming Lu1, Cheng Wang1, Xiaoyan Liang1, Yuxin Leng1, Ruxin Li1 and Zhizhan
Xu1
1
State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine
Mechanics, Chinese Academy of Sciences, P. O. Box 800-211, Shanghai 201800, China
2 Department of Physics, Shanghai Normal University, Shanghai 200234, China
3 Collaborative Innovation Center of IFSA (CICIFSA), Shanghai Jiao Tong University,
Shanghai 200240, China
High-charge electron bunch with broad energy spectrum has been experimentally
produced during interaction between high-intensity femtosecond laser pulse and clustering
gas jet with near critical density. The energetic electron bunch reaches the charge of 10nC
with cut-off energy of 50 MeV and full divergence angle of 15°. When this high-charge
energetic electron bunch shots into high-Z target with different thickness of several
millimetres, ultrafast MeV position beam and gamma-ray beam are produced. The
gamma-ray beam with broad energy spectrum reaches high-flux of 1010 photons per shot.
This ultrafast high-flux MeV gamma-ray beams are promising sources for photonuclear
reaction, non-destructive inspection and other potential applications.
