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Proceedings Paper

Progress toward a soft x-ray polarimeter
Author(s): Herman L. Marshall; Norbert S. Schulz; Brian Remlinger; Eric S. Gentry; David L. Windt; Eric M. Gullikson
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Paper Abstract

We are developing instrumentation for a telescope design capable of measuring linear X-ray polarization over a broad-band using conventional spectroscopic optics. Multilayer-coated mirrors are key to this approach, being used as Bragg reflectors at the Brewster angle. By laterally grading the multilayer mirrors and matching to the dispersion of a spectrometer, one may take advantage of high multilayer reflectivities and achieve modulation factors over 50% over the entire 0.2-0.8 keV band. We present progress on laboratory work to demonstrate the capabilities of an existing laterally graded multilayer coated mirror pair. We also present plans for a suborbital rocket experiment designed to detect a polarization level of 12-17% for an active galactic nucleus in the 0.1-1.0 keV band.

Paper Details

Date Published: 26 September 2013
PDF: 11 pages
Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88611D (26 September 2013); doi: 10.1117/12.2025727
Show Author Affiliations
Herman L. Marshall, MIT Kavli Institute for Astrophysics and Space Research (United States)
Norbert S. Schulz, MIT Kavli Institute for Astrophysics and Space Research (United States)
Brian Remlinger, MIT Kavli Institute for Astrophysics and Space Research (United States)
Eric S. Gentry, MIT Kavli Institute for Astrophysics and Space Research (United States)
David L. Windt, Reflective X-Ray Optics LLC (United States)
Eric M. Gullikson, Lawrence Berkeley National Lab. (United States)


Published in SPIE Proceedings Vol. 8861:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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