| Autor: |
Wang, Wentao, Li, Wentao, Liu, Jiansheng, Wang, Cheng, Chen, Qiang, Zhang, Zhijun, Qi, Rong, Leng, Yuxin, Liang, Xiaoyan, Liu, Yanqi, Lu, Xiaoming, Li, Ruxin, Xu, Zhizhan |
| Předmět: |
|
| Zdroj: |
Applied Physics Letters; 12/9/2013, Vol. 103 Issue 24, p243501, 5p, 3 Diagrams, 1 Graph |
| Abstrakt: |
We demonstrated experimentally the seeding-phase control for a two-stage laser wakefield accelerator with gradient injection. By optimizing the seeding phase of electrons into the second stage, electron beams beyond 0.5 GeV with a 3% rms energy spread were produced over a short acceleration distance of ∼2 mm. Peak energy of the electron beam was further extended beyond 1 GeV by lengthening the second acceleration stage to 5 mm. Time-resolved magnetic field measurements via magneto-optical Faraday polarimetry allowed us to monitor the processes of electron seeding and acceleration in the second stage. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
