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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >K-edge imaging with quasi-monochromatic LCS X-ray source on the basis of S-band compact electron linac
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K-edge imaging with quasi-monochromatic LCS X-ray source on the basis of S-band compact electron linac

机译:基于S波段紧凑型电子直线加速器的准单色LCS X射线源K边缘成像

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摘要

A quasi-monochromatic hard X-ray source via laser Compton scattering (LCS) was developed on the basis of an S-band compact electron linac at AIST. The total number of photons generated and the maximum X-ray energy were ~10~7 photons/s and 41 keV, respectively, when a 42-MeV electron beam was collided with an 800-nm Ti:sapphire laser at a 15° collision angle. We successfully demonstrated K-edge imaging using these LCS X-rays for the high-contrast observation of a human phantom with barium sulfate-concentrated blood vessels. In this paper, we describe the results of the K-edge imaging and analytical estimates of the contrast enhancement effect for the energy range ~37 keV, which corresponds to the K-edge energy of barium.
机译:在AIST的S波段紧凑型电子直线加速器的基础上,开发了通过激光康普顿散射(LCS)的准单色硬X射线源。当42MeV电子束与800nm Ti:蓝宝石激光器在15°碰撞下相撞时,产生的光子总数和最大X射线能量分别为〜10〜7个光子/秒和41keV。角度。我们成功地证明了使用这些LCS X射线进行K边缘成像,可以高浓度观察带有硫酸钡浓缩血管的人体模型。在本文中,我们描述了K边缘成像的结果以及对能量范围〜37 keV的对比度增强效果的分析估计,该能量范围对应于钡的K边缘能量。

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