北京同步辐射装置3W1B软X射线光束线偏振特性测量(英文)

Polarization Measurement of 3WlB Beamlineat BSRF in Soft X-Ray Range

应用自行研制的Mo/Si周期多层膜作为起偏器和检偏器的光学元件,测量了北京同步辐射装置3W1B束线的偏振状态．通过数据分析,得到了3W1B软X射线的有关偏振参数,在86—89eV能区经过起偏器后的偏振度超过98%,圆偏振分量介于1%—3%之间．

Using Mo/Si multilayers as the polarizer and analyzer, we have measured the state of polarization for 86-89eV of Beamline 3WlB at Beijing Synchrotron Radiation Facility （BSRF）. From the obtained data, we have determined the polarization parameters of Beamline 3WlB. Its polarizance is higher than 98% and the degree of circularly polarized radiation is between 1%-3% over a range of 86-89eV after polarizer.