A germanium crystal was bent through a grid of superficial grooves, manufactured on the sample surface. The resulting diffraction planes were bent thanks to quasi-mosaicity, which is an effect of mechanical anisotropy in crystals. High integrated diffraction efficiency was achieved in symmetric Laue geometry with a monochromatic X-ray beam set at 150 and 300 keV. It is demonstrated that the sample is capable of efficiently focusing X-rays. Such crystals can be used as optical components to focalize X- and gamma-rays in a high resolution Laue lens.

High-efficiency focusing of hard X-rays exploiting the quasi-mosaic effect in a bent germanium crystal

CAMATTARI, Riccardo
Primo
;
PATERNO', Gianfranco
Secondo
;
BELLUCCI, Valerio;GUIDI, Vincenzo
Ultimo
2014

Abstract

A germanium crystal was bent through a grid of superficial grooves, manufactured on the sample surface. The resulting diffraction planes were bent thanks to quasi-mosaicity, which is an effect of mechanical anisotropy in crystals. High integrated diffraction efficiency was achieved in symmetric Laue geometry with a monochromatic X-ray beam set at 150 and 300 keV. It is demonstrated that the sample is capable of efficiently focusing X-rays. Such crystals can be used as optical components to focalize X- and gamma-rays in a high resolution Laue lens.
2014
Camattari, Riccardo; Paterno', Gianfranco; A., Battelli; Bellucci, Valerio; P., Bastie; Guidi, Vincenzo
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2138814
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