2013•Chinese Physics CRequires access
Upgrade of beamline 3W1B at Beijing Synchrotron Radiation Facility
Dongliang Yang, Mingqi Cui, Qiuping Wang, Zhao Yi-Dong, Lei Zheng, Shibo Xi, Lijuan Liu, Zhiying Guo, De-Lai Wang, Chaoyang Li, Ning An
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Abstract
To improve the performance of Beamline 3W1B at the Beijing Synchrotron Radiation Facility for the soft X-ray magnetic linear dichroism research at transition metals L 2,3 edges, a new monochromator was designed and built to replace the original one. After the assemblage, alignment and adjustment of the monochromator system, the first commissioning results were obtained. The photon energy range is from 50 to 1000 eV with spectral resolutions of 1600 at 250 eV and 1000 at 870 eV. The photon flux is of the order of 10 8 –10 9 photons/s/200 mA/0.1%BW. In the electron's orbital plane the linear polarization degree of the light is higher than 99% at 704 eV. The beamline has satisfied the basic experimental requirements.