Time-resolved XAFS measurement using quick-scanning techniques at BSRF.
J Synchrotron Radiat
; 24(Pt 3): 674-678, 2017 05 01.
Article
em En
| MEDLINE
| ID: mdl-28452760
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 1â
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.
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MEDLINE
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En
Ano de publicação:
2017
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Article