Development of new diagnostics based on LiF detector for pump-probe experiments
Development of new diagnostics based on LiF detector for pump-probe experiments
复制标题
DOI：
10.1016/j.mre.2018.01.006
复制
发表时间：
2018-07-01
影响因子：
5.1
通讯作者：
Kodama, R.
中科院分区：
文献类型：
--
作者：
Pikuz, T.;Faenov, A.;Kodama, R.
我们提出了一种新的诊断方法，用于光学激光泵浦-X射线自由电子激光(XFEL)探测实验，以监测XFEL光束的尺寸、强度分布和可聚焦性，并控制由光激光脉冲驱动的靶的初始质量和均匀性。通过开发基于LiF晶体探测器的X射线成像，我们能够以前所未有的高空间分辨率(类似于1微米)测量硬X射线束内部的能量分布，并跨越大于几毫米的视场。这种诊断方法可以在现场使用，提供非常高的动态范围，具有极其有限的成本，并且在泵浦-探测实验中相对容易实现。所提出的方法被成功地应用于SPRING-8 Angstrom紧凑型自由电子激光器(SACLA)XFEL装置的泵浦-探测实验，并展示了其在当前和未来的高能密度科学实验中的潜力。(三)中国工程物理研究院2018年科技信息中心。Elsevier B.V.出版服务。
We present new diagnostics for use in optical laser pump - X-ray Free Electron Laser (XFEL) probe experiments to monitor dimensions, intensity profile and focusability of the XFEL beam and to control initial quality and homogeneity of targets to be driven by optical laser pulse. By developing X-ray imaging, based on the use of an LiF crystal detector, we were able to measure the distribution of energy inside a hard X-ray beam with unprecedented high spatial resolution (similar to 1 mu m) and across a field of view larger than some millimetres. This diagnostic can be used in situ, provides a very high dynamic range, has an extremely limited cost, and is relatively easy to be implemented in pump-probe experiments. The proposed methods were successfully applied in pump-probe experiments at the SPring-8 Angstrom Compact free electron LAser (SACLA) XFEL facility and its potential was demonstrated for current and future High Energy Density Science experiments. (C) 2018 Science and Technology Information Center, China Academy of Engineering Physics. Publishing services by Elsevier B.V.