Development of high-brightness hard x-ray source by Laser-Compton scattering
Development of high-brightness hard x-ray source by Laser-Compton scattering
复制标题
激光康普顿散射高亮度硬X射线源的研制
DOI：
10.1117/12.618023
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发表时间：
2005
期刊：
影响因子：
--
通讯作者：
F. Sakai
中科院分区：
文献类型：
--
作者：
T. Yanagida;T. Nakajyo;S. Ito;F. Sakai
激光康普顿散射是一种很有前途的产生高亮度、超短、能量可调X射线的方法。我们已经开发了一个紧凑的X射线源，使用激光康普顿散射。硬X射线，从15 keV到34 keV，产生的低发射度，38 MeV，0.8 nC电子加速器和飞秒4 TW钛：蓝宝石激光。产生的X射线由2×106（5×105）光子/脉冲组成，电子束团和激光脉冲之间的相互作用角为165°（90°）。采用了高精度的定时同步方案，并且对于90°散射，所产生的X射线的波动被抑制到11%（rms）。测量了产生的X射线的强度和能量的空间（角）分布，并与理论计算吻合良好。因此，X射线成像已被证明使用相衬技术与X射线束的干涉。
Laser-Compton scattering is a promising method for generating high-brightness, ultrashort, energy-tunable X-rays. We have developed a compact X-ray source using laser-Compton scattering. Hard X-rays, ranging from 15 keV to 34 keV, were generated with a low-emittance, 38 MeV, 0.8 nC electron accelerator and a femtosecond 4TW Ti:sapphire laser. The created X-rays were composed of 2×106 (5×105) photons/pulse for interaction angles between an electron bunch and a laser pulse of 165° (90°). A highly accurate timing synchronization scheme was employed, and the fluctuation of the generated X-rays was suppressed to 11% (rms) for the 90° scattering. The spatial (angular) distributions for the intensity and the energy of the generated X-ray were measured, and agreed well with theoretical calculations. Thus, X-ray imaging has been demonstrated using a phase-contrast technique with the interference of an X-ray beam.
低发射电子束激光康普顿散射产生的飞秒 X 射线脉冲的空间光束轮廓
DOI：
--
发表时间：
2003
期刊：
Applied Physics B 76
影响因子：
--
作者：
M.Yorozu;J.Yang;Y.Okada;T.Yanagida;F.Sakai;S.Ito;A.Endo
通讯作者：
A.Endo