Upgrade of laser pump time-resolved X-ray probes in Beijing synchrotron.
Can YuYan ZhangGe LeiHao WangYu Hang WangBing Bing ZhangDa Rui SunJia Li ZhaoYang Fan ZhouQiu Ju LiZhen Hua GaoFei ZhanYe TaoPublished in: Journal of synchrotron radiation (2019)
The upgrade of the laser pump time-resolved X-ray probes, namely time-resolved X-ray absorption spectroscopy (TR-XAS) and X-ray diffraction (TR-XRD), implemented at the Beijing Synchrotron Radiation Facility, is described. The improvements include a superbunch fill, a high-efficiency fluorescence collection, an efficient spatial overlap protocol and a new data-acquisition scheme. After upgrade, the adequate TR-XAS signal is now obtained in a 0.3 mM solution, compared with a 6 mM solution in our previous report. Furthermore, to extend application in photophysics, the TR-XAS probe is applied on SrCoO2.5 thin film. And for the first time, TR-XAS is combined with TR-XRD to simultaneously detect the kinetic trace of structural changes in thin film.
Keyphrases
- high resolution
- dual energy
- single molecule
- high efficiency
- electron microscopy
- living cells
- air pollution
- small molecule
- particulate matter
- randomized controlled trial
- computed tomography
- high speed
- fluorescence imaging
- quantum dots
- heavy metals
- mass spectrometry
- radiation therapy
- radiation induced
- electronic health record
- big data
- deep learning
- fluorescent probe