Open AccessPerformance of the atomic and molecular physics beamline at the National Synchrotron Radiation Laboratory
Author(s) -
Wang Sisheng,
Kong Ruihong,
Shan Xiaobin,
Wang Zhenya,
Zhang Yunwu,
Sheng Liusi,
Hao Liqing,
Zhou Shikang
Publication year - 2006
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/s0909049506030536
Subject(s) - beamline , monochromator , photoionization , undulator , synchrotron radiation , physics , spectroscopy , atomic physics , photon energy , photon , high energy x rays , photoionization mode , optics , ionization , radiation , beam (structure) , ion , wavelength , quantum mechanics
At the National Synchrotron Radiation Laboratory, The University of Science and Technology of China, an atomic and molecular physics beamline with an energy range of 7.5–124 eV has been constructed for studying the spectroscopy and dynamics of atoms, molecules and clusters. The undulator‐based beamline, with a high‐resolution spherical‐grating monochromator (SGM), is connected to the atomic and molecular physics end‐station. This end‐station includes a main experimental chamber for photoionization studies and an additional multi‐stage photoionization chamber for photoabsorption spectroscopy. A mid‐photon flux of 5 × 10 12 photons s −1 and a high resolving power is provided by this SGM beamline in the energy range 7.5–124 eV. The size of the synchrotron radiation beam spot at the sample is about 0.5 mm in the vertical direction and 1.0 mm in the horizontal direction. Some experimental results of photoionization efficiency spectroscopy and photoabsorption spectroscopy of atoms and molecules are also reported.