High-precision soft x-ray polarimeter at Diamond Light Source

作者：Wang H^*; Dhesi S S; Maccherozzi F; Cavill S; Shepherd E; Yuan F; Deshmukh R; Scott S; van der Laan G; Sawhney K J S

来源：Review of Scientific Instruments, 2011, 82(12): 123301.

DOI：10.1063/1.3665928

• diamond
• light sources
• polarimeters

The development and performance of a high-precision polarimeter for the polarization analysis in the soft x-ray region is presented. This versatile, high-vacuum compatible instrument is supported on a hexapod to simplify the alignment with a resolution less than 5 mu rad, and can be moved with its own independent control system easily between different beamlines and synchrotron facilities. The polarimeter can also be used for the characterization of reflection and transmission properties of optical elements. A W/B(4)C multilayer phase retarder was used to characterize the polarization state up to 1200 eV. A fast and accurate alignment procedure was developed, and complete polarization analysis of the APPLE II undulator at 712 eV has been performed.

• 出版日期2011-12