Hard x-ray broad band Laue lenses (80-600 keV): building methods and performances
Date Issued
2015
Author(s)
Virgilli, E.
•
Frontera, F.
•
Rosati, P.
•
Liccardo, V.
•
Squerzanti, S.
•
Carassiti, V.
•
•
•
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.
Coverage
Optics for EUV, X-Ray, and Gamma-Ray Astronomy VII
All editors
O'Dell, Stephen L.; Pareschi, Giovanni
Series
Volume
9603
Start page
960308
Conferenece
SPIE Optical Engineering + Applicazions 2015
Conferenece place
San Diego, CA, USA
Conferenece date
9-13 August, 2015
Issn Identifier
0277-786X
Ads BibCode
2015SPIE.9603E..08V
Rights
open.access
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