In-depth calibration of a Laue lens prototype composed of Fe and Al mosaic crystals

Colin Wade; Nicolas Barrière; John A. Tomsick; Lorraine Hanlon; Steven E. Boggs; Nicolai F. Brejnholt; Sonny Massahi; Peter Von Ballmoos

doi:10.1117/12.2234690

18 July 2016 In-depth calibration of a Laue lens prototype composed of Fe and Al mosaic crystals

Colin Wade, Nicolas Barrière, John A. Tomsick, Lorraine Hanlon, Steven E. Boggs, Nicolai F. Brejnholt, Sonny Massahi, Peter Von Ballmoos

Author Affiliations +

Proceedings Volume 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray; 99056P (2016) https://doi.org/10.1117/12.2234690
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

The Laue lens is a developing technology for focusing soft gamma-rays, that is based on the principle of Bragg diffraction. A suitable arrangement of diffracting crystals is used to concentrate a set of parallel incoming photons onto a common focal spot. In late 2014, the Laue lens assembly station (LLAS) at UC Berkeley was used to construct a prototype lens segment, consisting of 48 5 x 5mm² crystals - 36 iron and 12 aluminium. The segment is composed of 8 partial rings, each of which is aligned to diffract an energy between 90 and 130 keV. In December 2015 the prototype was tested and calibrated using the LLAS and results are presented here. The crystal mounting speed, accuracy of crystal position and orientation, and crystal reflectivity are addressed.

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Colin Wade, Nicolas Barrière, John A. Tomsick, Lorraine Hanlon, Steven E. Boggs, Nicolai F. Brejnholt, Sonny Massahi, and Peter Von Ballmoos "In-depth calibration of a Laue lens prototype composed of Fe and Al mosaic crystals", Proc. SPIE 9905, Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray, 99056P (18 July 2016); https://doi.org/10.1117/12.2234690

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KEYWORDS

Gamma radiation

Multilayers

Photons

Polymethylmethacrylate

Sensors

Polarimetry

Polymers

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