一种利用X射线自由电子激光追踪超快化学反应的多功能实验系统。
A versatile experimental system for tracking ultrafast chemical reactions with X-ray free-electron lasers.
作者信息
Katayama Tetsuo, Nozawa Shunsuke, Umena Yasufumi, Lee SungHee, Togashi Tadashi, Owada Shigeki, Yabashi Makina
机构信息
Research Institute for Interdisciplinary Science and Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tshushima Naka, Okayama 700-8530, Japan.
Department of Chemistry and Chemical Institute for Functional Materials, Pusan National University, Busan 609-735, South Korea.
出版信息
Struct Dyn. 2019 Sep 12;6(5):054302. doi: 10.1063/1.5111795. eCollection 2019 Sep.
An experimental system, SPINETT (SACLA Pump-probe INstrumEnt for Tracking Transient dynamics), dedicated for ultrafast pump-probe experiments using X-ray free-electron lasers has been developed. SPINETT consists of a chamber operated under 1 atm helium pressure, two Von Hamos spectrometers, and a large two-dimensional detector having a short work distance. This platform covers complementary X-ray techniques; one can perform time-resolved X-ray absorption spectroscopy, time-resolved X-ray emission spectroscopy, and time-resolved X-ray diffuse scattering. Two types of liquid injectors have been prepared for low-viscosity chemical solutions and for protein microcrystals embedded in a matrix. We performed a test experiment at SPring-8 Angstrom Compact free-electron LAser and demonstrated the capability of SPINETT to obtain the local electronic structure and geometrical information simultaneously.
已经开发出一种实验系统，即SPINETT（用于跟踪瞬态动力学的SACLA泵浦-探测仪器），专门用于使用X射线自由电子激光进行超快泵浦-探测实验。SPINETT由一个在1个大气压氦气压力下运行的腔室、两台冯哈莫斯光谱仪以及一个工作距离短的大型二维探测器组成。该平台涵盖互补的X射线技术；可以进行时间分辨X射线吸收光谱、时间分辨X射线发射光谱以及时间分辨X射线漫散射。已经制备了两种类型的液体注射器，分别用于低粘度化学溶液和嵌入基质中的蛋白质微晶。我们在SPring-8埃紧凑型自由电子激光装置上进行了测试实验，并证明了SPINETT能够同时获取局部电子结构和几何信息。
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