Open AccessImplementation of ultrafast X‐ray diffraction at the 1W2B wiggler beamline of Beijing Synchrotron Radiation Facility
Author(s) -
Sun Da-Rui,
Xu Guang-Lei,
Zhang Bing-Bing,
Du Xue-Yan,
Wang Hao,
Li Qiu-Ju,
Zhou Yang-Fan,
Li Zhen-Jie,
Zhang Yan,
He Jun,
Yue Jun-Hui,
Lei Ge,
Tao Ye
Publication year - 2016
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577516004252
Subject(s) - wiggler , beamline , synchrotron radiation , beijing , physics , synchrotron , optics , diffraction , ultrashort pulse , x ray , nuclear physics , laser , geography , electron , beam (structure) , china , cathode ray , archaeology
The implementation of a laser pump/X‐ray probe scheme for performing picosecond‐resolution X‐ray diffraction at the 1W2B wiggler beamline at Beijing Synchrotron Radiation Facility is reported. With the hybrid fill pattern in top‐up mode, a pixel array X‐ray detector was optimized to gate out the signal from the singlet bunch with interval 85 ns from the bunch train. The singlet pulse intensity is ∼2.5 × 10 6 photons pulse −1 at 10 keV. The laser pulse is synchronized to this singlet bunch at a 1 kHz repetition rate. A polycapillary X‐ray lens was used for secondary focusing to obtain a 72 µm (FWHM) X‐ray spot. Transient photo‐induced strain in BiFeO 3 film was observed at a ∼150 ps time resolution for demonstration.