Author:
Beilicke M.,Cowsik R.,Dowkontt P.,Guo Q.,Kislat F.,Barthelmy S.,Okajima T.,Mitchell J. W.,Schnittman J.,Zeiger B.,De Geronimo G.,Baring M. G.,Bodaghee A.,Miyazawa T.,Finkelstein K. D.,Krawczynski H.
Abstract
X-ray polarimetry promises to give qualitatively new information bout high-energy astrophysical sources, such as binary black hole systems, micro-quasars, active galactic nuclei, and gamma-ray bursts. We designed, built and tested ahard X-ray polarimeter, X-<em>Calibur</em>, to be used in the focal plane of the InFOCuS grazing incidence hard X-ray telescope.X-<em>Calibur</em> combines a low-Z Compton scatterer with a CZT detector assembly to measure the polarization of 20−60 keV X-rays making use of the fact that polarized photons Compton scatter preferentially perpendicular to the electric field orientation; in principal, a similar space-borne experiment could be operated in the 5−100 keV regime. X-<em>Calibur</em> achieves a high detection efficiency of order unity.
Publisher
Czech Technical University in Prague - Central Library
Cited by
1 articles.
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