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Proceedings Paper

Bent crystals as high-reflectivity components for a Laue lens: basic concepts and experimental techniques
Author(s): Vincenzo Guidi; Riccardo Camattari; Ilaria Neri; Luca Lanzoni
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Paper Abstract

For fabrication of crystals with curved diffracting planes, several techniques have been worked out. Amongst curved crystals, special interest is given to those that are being bent due to internal forces. Surface grooving is proposed as an efficient method to reproducibly obtain self-standing bent crystals. Silicon or germanium plates can be plastically deformed by grooving one of their major surfaces with very good control of the curvature. We present a systematic experimental study and a model based on the theory of elasticity. The technique enables the fabrication, in a very reproducible fashion, of curved crystals for the realization of an high-efficiency hard X-ray concentrator (Laue lens).

Paper Details

Date Published: 17 September 2012
PDF: 10 pages
Proc. SPIE 8443, Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray, 844333 (17 September 2012); doi: 10.1117/12.926229
Show Author Affiliations
Vincenzo Guidi, Univ. degli Studi di Ferrara (Italy)
SENSOR Lab., CNR, IDASC (Italy)
Riccardo Camattari, Univ. degli Studi di Ferrara (Italy)
SENSOR Lab., CNR, IDASC (Italy)
Ilaria Neri, Univ. degli Studi di Ferrara (Italy)
SENSOR Lab., CNR, IDASC (Italy)
Luca Lanzoni, Univ. degli Studi di San Marino (Italy)


Published in SPIE Proceedings Vol. 8443:
Space Telescopes and Instrumentation 2012: Ultraviolet to Gamma Ray
Tadayuki Takahashi; Stephen S. Murray; Jan-Willem A. den Herder, Editor(s)

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