Soft x-ray polarimeter laboratory tests

Kendrah D. Murphy; Herman L. Marshall; Norbert S. Schulz; Kevin Jenks; Sophie J. B. Sommer; Eric A. Marshall

doi:10.1117/12.857574

29 July 2010 Soft x-ray polarimeter laboratory tests

Kendrah D. Murphy, Herman L. Marshall, Norbert S. Schulz, Kevin Jenks, Sophie J. B. Sommer, Eric A. Marshall

Proceedings Volume 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray; 77322Y (2010) https://doi.org/10.1117/12.857574
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States

Abstract

Multilayer-coated optics can strongly polarize X-rays and are central to a new design of a broad-band, soft X-ray polarimeter. We have begun laboratory work to verify the performance of components that could be used in future soft X-ray polarimetric instrumentation. We have reconfigured a 17 meter beamline facility, originally developed for testing transmission gratings for Chandra, to include a polarized X-ray source, an X-ray-dispersing transmission grating, and a multilayer-coated optic that illuminates a CCD detector. The X-rays produced from a Manson Model 5, multi-anode source are polarized by a multilayer-coated flat mirror. The current configuration allows for a 180 degree rotation of the source in order to rotate the direction of polarization. We will present progress in source characterization and system modulation measurements as well as null and robustness tests.

Citation Download Citation

Kendrah D. Murphy, Herman L. Marshall, Norbert S. Schulz, Kevin Jenks, Sophie J. B. Sommer, and Eric A. Marshall "Soft x-ray polarimeter laboratory tests", Proc. SPIE 7732, Space Telescopes and Instrumentation 2010: Ultraviolet to Gamma Ray, 77322Y (29 July 2010); https://doi.org/10.1117/12.857574

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