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Complete polarization analysis of high energy soft x-rays by combining a multilayer phase retarder with crystal analyzer

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4 Author(s)
Wang, H. ; Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom ; Dhesi, S.S. ; Maccherozzi, F. ; Sawhney, K.J.S.

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We demonstrate a complete polarization analysis of soft x-rays with an energy of 1.1 keV using a free-standing W/B4C multilayer phase retarders and a beryl crystal analyzer. The W/B4C multilayer exhibits five times increase in transmission over that previously reported. The beryl crystal proves to be a suitable analyzer for the polarization analysis with a 10% s-component of reflectivity resulting in an extinction ratio close to 0.002 at 1.1 keV. The combination of multilayer phase retarders and crystal analyzers should open up the field of the soft x-ray polarization analysis in the energy range between 1 keV and 2 keV.

Published in:

Journal of Applied Physics  (Volume:111 ,  Issue: 12 )