利用带有氙团簇的太赫兹条纹相机在SACLA进行高精度X射线自由电子激光脉冲到达时间测量。
High-precision x-ray FEL pulse arrival time measurements at SACLA by a THz streak camera with Xe clusters.
作者信息
Juranić P N, Stepanov A, Ischebeck R, Schlott V, Pradervand C, Patthey L, Radović M, Gorgisyan I, Rivkin L, Hauri C P, Monoszlai B, Ivanov R, Peier P, Liu J, Togashi T, Owada S, Ogawa K, Katayama T, Yabashi M, Abela R
出版信息
Opt Express. 2014 Dec 1;22(24):30004-12. doi: 10.1364/OE.22.030004.
The accurate measurement of the arrival time of a hard X-ray free electron laser (FEL) pulse with respect to a laser is of utmost importance for pump-probe experiments proposed or carried out at FEL facilities around the world. This manuscript presents the latest device to meet this challenge, a THz streak camera using Xe gas clusters, capable of pulse arrival time measurements with an estimated accuracy of several femtoseconds. An experiment performed at SACLA demonstrates the performance of the device at photon energies between 5 and 10 keV with variable photon beam parameters.
对于世界各地自由电子激光（FEL）设施所提出或开展的泵浦 - 探测实验而言，精确测量硬X射线自由电子激光脉冲相对于激光的到达时间至关重要。本文介绍了应对这一挑战的最新装置，即一种使用氙气团簇的太赫兹条纹相机，其能够以估计几飞秒的精度测量脉冲到达时间。在SACLA进行的一项实验展示了该装置在光子能量为5至10 keV且光子束参数可变的情况下的性能。
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