| Autor: |
Ke, Lintong, Yu, Changhai, Feng, Ke, Qin, Zhiyong, Jiang, Kangnan, Wang, Hao, Luan, Shixia, Yang, Xiaojun, Xu, Yi, Leng, Yuxin, Wang, Wentao, Liu, Jiansheng, Li, Ruxin, Martines, Emilio |
| Předmět: |
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| Zdroj: |
Applied Sciences (2076-3417); 3/15/2021, Vol. 11 Issue 6, p2560, 9p |
| Abstrakt: |
We demonstrate a simple but efficient way to optimize and improve the properties of laser-wakefield-accelerated electron beams (e beams) based on a controllable shock-induced density down-ramp injection that is achieved with an inserted tunable shock wave. The e beams are tunable from 400 to 800 MeV with charge ranges from 5 to 180 pC. e beams with high reproducibility (of ~95% in consecutive 100 shots) were produced in elaborate experiments with an average root- mean-square energy spread of 0.9% and an average divergence of 0.3 mrad. Three-dimensional particle-in-cell (PIC) simulations were also performed to accordingly verify and uncover the process of the injection and the acceleration. These tunable e beams will facilitate practical applications for advanced accelerator beam sources. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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