CINECA IRIS Institutional Research Information System
IRIS è la soluzione IT che facilita la raccolta e la gestione dei dati relativi alle attività e ai prodotti della ricerca. Fornisce a ricercatori, amministratori e valutatori gli strumenti per monitorare i risultati della ricerca, aumentarne la visibilità e allocare in modo efficace le risorse disponibili.
EnglishPermanent and reproducible deformation of silicon mono-crystals has been experimentally attained by mechanical grooving of one of its surfaces. The method produces uniform deformation that can be controlled by proper choice of the parameters of grooving. The strain in silicon plates was modeled analytically in terms of a superficial compression occurring in the material between the grooves, and the strain propagates deep into the bulk. The superficial grooved region acts as it were like a tensile film, allowing a spherical and homogeneous curvature of the whole crystal plate. Thereby, the classic Stoney’s formula was reconsidered and adapted for explanation of the experimental behavior. Minimum radius of curvature experimentally achieved was about 3 meters. Curved crystals are the basis for many applications, e.g. for x-ray optics to manipulate high energy photons for the construction of very sensitive instruments for x-ray astronomy.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
| Titolo: | Mechanical properties of crystals bent through indentations for the realization of a Laue lens for concentration of hard x-rays |
| Autori: | |
| Data di pubblicazione: | 2011 |
| Handle: | http://hdl.handle.net/11392/1533261 |
| ISBN: | 9788890634000 |
| Appare nelle tipologie: | 04.2 Contributi in atti di convegno (in Volume) |
File in questo prodotto:
Copyright © 2021