A technique enabling in situ measurements of the spectrum of X-ray tubes employed in mammographic screenings is described. The technique involves the use of a commercially available CCD camera and a set of metal foils and is particularly useful to perform a fast evaluation of the spectral properties of a Mo anode mammographic system operating at standard flux levels. A description of the detector calibration procedure is first given, followed by a discussion of the study and choice of an appropriate set of X-ray attenuation foils. Finally, the use of the system for a spectroscopic characterization of a mammographic system is reported. (C) 2007 Elsevier B.V. All rights reserved.
|Autori:||Labate L; Levato T; Galimberti M; Giulietti A; Giulietti D; Sanna M; Traino C; Lazzeri M; Gizzi LA|
|Titolo:||A single-photon CCD-based setup for in situ measurement of the X-ray spectrum of mammographic units|
|Anno del prodotto:||2008|
|Digital Object Identifier (DOI):||10.1016/j.nima.2008.06.035|
|Appare nelle tipologie:||1.1 Articolo in rivista|