The diffraction capability of two crystalline silicon plates bent by carbon fiber deposition have been studied. The performed treatment induced a permanent curvature in the samples, resulting in an increase of the diffraction efficiency. The obtained efficiencies are constant over a wide angular range and close to the theoretical expectations, meaning that the curvatures were homogeneous. Most importantly, the bending technique allowed the manufacture of bent samples up to 5 mm thick and with a radius of curvature down to 30 m. With such technique, the fabrication of crystals for the realization of a hard X-ray concentrator (Laue lens) for astrophysical purpose is enabled.
Realization of bent crystals for Laue lens prototype through carbon fiber thick film
CAMATTARI, Riccardo;BELLUCCI, Valerio;MAZZOLARI, Andrea;GUIDI, Vincenzo
2014
Abstract
The diffraction capability of two crystalline silicon plates bent by carbon fiber deposition have been studied. The performed treatment induced a permanent curvature in the samples, resulting in an increase of the diffraction efficiency. The obtained efficiencies are constant over a wide angular range and close to the theoretical expectations, meaning that the curvatures were homogeneous. Most importantly, the bending technique allowed the manufacture of bent samples up to 5 mm thick and with a radius of curvature down to 30 m. With such technique, the fabrication of crystals for the realization of a hard X-ray concentrator (Laue lens) for astrophysical purpose is enabled.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
