1. Time-resolved XAFS measurement using quick-scanning techniques at BSRF.
- Author
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Chu, Shengqi, Zheng, Lirong, An, Pengfei, Gong, Hui, Hu, Tiandou, Xie, Yaning, and Zhang, Jing
- Subjects
TIME-resolved fluorometry ,MONOCHROMATORS ,SIGNAL-to-noise ratio ,X-ray absorption near edge structure ,HIGH resolution imaging - Abstract
A new quick-scanning X-ray absorption fine-structure (QXAFS) system has been established on beamline 1W1B at the Beijing Synchrotron Radiation Facility. As an independent device, the QXAFS system can be employed by other beamlines equipped with a double-crystal monochromator to carry out quick energy scans and data acquisition. Both continuous-scan and trapezoidal-scan modes are available in this system to satisfy the time scale from subsecond (in the X-ray absorption near-edge structure region) to 1 min. Here, the trapezoidal-scan method is presented as being complementary to the continuous-scan method, in order to maintain high energy resolution and good signal-to-noise ratio. The system is demonstrated to be very reliable and has been combined with in situ cells to carry out time-resolved XAFS studies. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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