外文题目: Ultrahigh brilliance quasi-monochromatic MeV gamma-rays based on self-synchronized all-optical Compton scattering
作者: Yu, Changhai; Qi, Rong; Wang, Wentao; Liu, Jiansheng; Li, Wentao; Wang, Cheng; Zhang, Zhijun; Liu, Jiaqi; Qin, Zhiyong; Fang, Ming; Feng, Ke; Wu, Ying; Tian, Ye; Xu, Yi; Wu, Fenxiang; Leng, Yuxin; Weng, Xiufeng; Wang, Jihu; Wei, Fuli; Yi, Yicheng; Song, Z
刊名: Sci Rep
年: 2016 卷: 6 文章编号：29518
英文关键词:

ELECTRON-BEAMS; X-RAYS; LASER; ACCELERATION
英文摘要:
Inverse Compton scattering between ultra-relativistic electrons and an intense laser field has been proposed as a major route to generate compact high-brightness and high-energy gamma-rays. Attributed to the inherent synchronization mechanism, an all-optical Compton scattering gamma-ray source, using one laser to both accelerate electrons and scatter via the reflection of a plasma mirror, has been demonstrated in proof-of-principle experiments to produce a x-ray source near 100 keV. Here, by designing a cascaded laser wakefield accelerator to generate high-quality monoenergetic e-beams, which are bound to head-on collide with the intense driving laser pulse via the reflection of a 20-umthick Ti foil, we produce tunable quasi-monochromatic MeV gamma-rays (33% full-width at half-maximum) with a peak brilliance of similar to 3 x 10(22) photons s(-1) mm(-2) mrad(-2) 0.1% BW at 1 MeV. To the best of our knowledge, it is one order of magnitude higher than ever reported value of its kinds in MeV regime. This compact ultrahigh brilliance gamma-ray source may provide applications in nuclear resonance fluorescence, x-ray radiology and ultrafast pump-probe nondestructive inspection.


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1038/srep29518


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