Scientific Results

A single-photon CCD-based setup for in situ measurement of the X-ray spectrum of mammographic units

Year: 2008

Authors: Labate L., Levato T., Galimberti M., Giulietti A., Giulietti D., Sanna M., Traino C., Lazzeri M., Gizzi LA.

Autors Affiliation: Intense Laser Irradiation Laboratory, IPCF, Consiglio Nazionale delle Ricerche, Area della Ricerca di Pisa, via Moruzzi 1, 56124 Pisa, Italy;
Dipartimento di Fisica, Universita` di Pisa, Italy;
U.O. Fisica Sanitaria, Azienda Ospedaliero-Universitaria Pisana, Pisa, Italy

Abstract: 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.

Journal/Review: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT

Volume: 594 (2)      Pages from: 278  to: 282

KeyWords: X-ray spectroscopy; mammography; quality control; CCD detectors;
DOI: 10.1016/j.nima.2008.06.035

Citations: 12
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