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Proceedings Paper

Hard x-ray broad band Laue lenses (80-600 keV): building methods and performances
Author(s): E. Virgilli; F. Frontera; P. Rosati; V. Liccardo; S. Squerzanti; V. Carassiti; E. Caroli; N. Auricchio; J. B. Stephen
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Paper Abstract

We present the status of the LAUE project devoted to develop a technology for building a 20 meter long focal length Laue lens for hard X-/soft gamma-ray astronomy (80-600 keV). The Laue lens is composed of bent crystals of Gallium Arsenide (GaAs, 220) and Germanium (Ge, 111), and, for the first time, the focusing property of bent crystals has been exploited for this field of applications. We show the preliminary results concerning the adhesive employed to fix the crystal tiles over the lens support, the positioning accuracy obtained and possible further improvements. The Laue lens petal that will be completed in a few months has a pass band of 80-300 keV and is a fraction of an entire Laue lens capable of focusing x-rays up to 600 keV, possibly extendable down to ~20-30 keV with suitable low absorption crystal materials and focal length. The final goal is to develop a focusing optics that can improve the sensitivity over current telescopes in this energy band by 2 orders of magnitude.

Paper Details

Date Published: 4 September 2015
PDF: 9 pages
Proc. SPIE 9603, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII, 960308 (4 September 2015); doi: 10.1117/12.2190335
Show Author Affiliations
E. Virgilli, Univ. degli Studi di Ferrara (Italy)
F. Frontera, Univ. degli Studi di Ferrara (Italy)
P. Rosati, Univ. degli Studi di Ferrara (Italy)
V. Liccardo, Instituto Tecnológico de Aeronáutica (Brazil)
S. Squerzanti, Istituto Nazionale di Fisica Nucleare (Italy)
V. Carassiti, Istituto Nazionale di Fisica Nucleare (Italy)
E. Caroli, INAF - IASF Bologna (Italy)
N. Auricchio, INAF - IASF Bologna (Italy)
J. B. Stephen, INAF - IASF Bologna (Italy)


Published in SPIE Proceedings Vol. 9603:
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII
Stephen L. O'Dell; Giovanni Pareschi, Editor(s)

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