Generation of first hard X-ray pulse at Tsinghua Thomson Scattering X-ray Source
Generation of first hard X-ray pulse at Tsinghua Thomson Scattering X-ray Source
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DOI：
10.1063/1.4803671
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发表时间：
2013-05-01
影响因子：
1.6
通讯作者：
Tang, Chuanxiang
中科院分区：
文献类型：
--
作者：
Du, Yingchao;Yan, Lixin;Tang, Chuanxiang
清华汤姆逊散射X射线源（TTX）是国内首个基于太瓦超短激光与相对论电子束汤姆逊散射的专用硬X射线源。在本文中，我们报告了通过 800 nm 激光和 46.7 MeV 电子束正面碰撞第一个硬 X 射线脉冲 (51.7 keV) 的实验生成和表征。在电子束电荷为 200 pC、激光脉冲能量为 300 mJ 的情况下，测得的产量为每个脉冲 1.0 x 10(6)。 X 射线脉冲的角强度分布和能谱是通过使用 CsI 闪烁体和硅衰减器的电子倍增电荷耦合装置测量的。这些测量结果与理论和模拟预测非常吻合。还介绍了在 TTX 处使用 X 射线脉冲的成像测试。 (C) 2013 AIP 出版有限责任公司。
Tsinghua Thomson Scattering X-ray Source (TTX) is the first-of-its-kind dedicated hard X-ray source in China based on the Thomson scattering between a terawatt ultrashort laser and relativistic electron beams. In this paper, we report the experimental generation and characterization of the first hard X-ray pulses (51.7 keV) via head-on collision of an 800 nm laser and 46.7 MeV electron beams. The measured yield is 1.0 x 10(6) per pulse with an electron bunch charge of 200 pC and laser pulse energy of 300 mJ. The angular intensity distribution and energy spectra of the X-ray pulse are measured with an electron-multiplying charge-coupled device using a CsI scintillator and silicon attenuators. These measurements agree well with theoretical and simulation predictions. An imaging test using the X-ray pulse at the TTX is also presented. (C) 2013 AIP Publishing LLC.