Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (5): 050102 doi: 10.13538/j.1001-8042/nst.26.050102

• SYNCHROTRON RADIATION TECHNOLOGY AND APPLICATIONS • Previous Articles     Next Articles

The XAFS beamline of SSRF

YU Hai-Sheng, WEI Xiang-Jun, LI Jiong, GU Song-Qi, ZHANG Shuo, WANG Li-Hua, MA Jing-Yuan, LI Li-Na, GAO Qian, SI Rui, SUN Fan-Fei, WANG Yu, SONG Fei, XU Hong-Jie, YU Xiao-Han, ZOU Yang, WANG Jian-Qiang, JIANG Zheng, HUANG Yu-Ying   

  1. Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201204, China
  • Contact: JIANG Zheng, HUANG Yu-Ying E-mail:jiangzheng@sinap.ac.cn; huangyuying@sinap.ac.cn
  • Supported by:

    Supported by National Natural Science Foundation of China (Nos.
    11175244, 11275256 and 11179024)

YU Hai-Sheng, WEI Xiang-Jun, LI Jiong, GU Song-Qi, ZHANG Shuo, . The XAFS beamline of SSRF.Nuclear Science and Techniques, 2015, 26(5): 050102     doi: 10.13538/j.1001-8042/nst.26.050102

Abstract:

The BL14W1 beamline at Shanghai Synchrotron Radiation Facility (SSRF) is an X-ray absorption finestructure (XAFS) beamline, for investigating atomic local structure, which is demanded extensively in the fields of physics, chemistry, materials science, environmental science and so on. The beamline is based on a 38-pole wiggler with the maximum magnetic field of 1.2 T. X-rays of 4.5–40 keV can be extracted by the optical scheme consisting of white beam vertical collimating mirror, liquid-nitrogen-cooled double crystal monochromator of Si(111) and Si(311), toroidal focusing mirror and higher harmonics rejection mirror. The maximum photon flux about 5×  1012 photons/s at the sample at 10 keV, with a beam size of 0.3mm × 0.3 mm. The beamline is equipped with four types of detectors for experiments in either transmission or fluorescence mode. At present, quick-XAFS, grazing incidence XAFS, X-ray emission spectroscopy, high-pressure XAFS and time-resolved X-ray excited optical luminescence methods have been developed.

Key words: Shanghai Synchrotron Radiation Facility, X-ray absorption fine structure, BL14W1