Fabrication of quasi-mosaic Ge crystals for the LAUE project

Riccardo Camattari; Alessandro Battelli; Valerio Bellucci; Ilaria Neri; Vincenzo Guidi; Filippo Frontera

doi:10.1117/12.2024109

26 September 2013 Fabrication of quasi-mosaic Ge crystals for the LAUE project

Riccardo Camattari, Alessandro Battelli, Valerio Bellucci, Ilaria Neri, Vincenzo Guidi, Filippo Frontera

Proceedings Volume 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI; 88610C (2013) https://doi.org/10.1117/12.2024109
Event: SPIE Optical Engineering + Applications, 2013, San Diego, California, United States

Abstract

A series of quasi-mosaic curved crystals has been fabricated for the Laue project to build up a prototype of a Laue lens. Curvature has been imparted to the samples thanks to the grooving method, which makes it possible to realize self-standing curved plates. Samples are 10 × 30 × 2 mm³ Ge crystals characterized by two curvatures of different crystallographic planes. The primary curvature allows the focalization of the diffracted X-rays on a focal spot smaller than the crystal dimension. The secondary curvature, i.e. quasi-mosaic curvature, amplifies the diffraction efficiency by more than one order of magnitude with respect to an equivalent crystal without quasi-mosaic curvature.

Citation Download Citation

Riccardo Camattari, Alessandro Battelli, Valerio Bellucci, Ilaria Neri, Vincenzo Guidi, and Filippo Frontera "Fabrication of quasi-mosaic Ge crystals for the LAUE project", Proc. SPIE 8861, Optics for EUV, X-Ray, and Gamma-Ray Astronomy VI, 88610C (26 September 2013); https://doi.org/10.1117/12.2024109

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