期刊
出版社
ELSEVIER
DOI: 10.1016/j.nimb.2013.01.065
关键词
Laser backscattering; X-ray; Linear accelerator; Inverse Compton; Ultrafast; Thomson scattering
类别
资金
- EC FP7 LASERLAB-EUROPE/CHARPAC [284464]
A tunable source of intense ultra-short hard X-ray pulses represents a novel tool for the structural analysis of complex systems with unprecedented temporal and spatial resolution. With the simultaneous availability of a high power short-pulse laser system this provides unique opportunities at the forefront of relativistic light-matter interactions. At Helmholtz-Zentrum Dresden-Rossendorf (HZDR) we demonstrated the principle of such a light source (PHOENIX - Photon Electron collider for Narrow bandwidth Intense X-Rays) by colliding picosecond electron bunches from the ELBE linear accelerator with counter-propagating femtosecond laser pulses from the 150 TW Draco Ti:Sapphire laser system. The generated narrowband X-rays are highly collimated and can be reliably adjusted from 12 keV to 20 key by tuning the electron energy (24-30 MeV). Ensuring the spatial-temporal overlap at the interaction point and suppressing the Bremsstrahlung background a signal to noise ratio of greater than 300 was reached. (C) 2013 Elsevier B.V. All rights reserved.
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