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Mammography with synchrotron radiation: Advantages brought by monochromaticity, energy tuneability and spatial coherence

Arfelli, F; Bonvicini, V; Bravin, A; Cantatore, G; Castelli, E; Dalla Palma, L; Di Michiel, M; ... Vallazza, E; + view all (1999) Mammography with synchrotron radiation: Advantages brought by monochromaticity, energy tuneability and spatial coherence. In: Fernandez, JE and Tartari, A, (eds.) (Proceedings) European Conference on Energy Dispersive X-Ray Spectrometry 1998 (EDXRS-98). (pp. pp. 225-230). EDITRICE COMPOSITORI: BOLOGNA, ITALY.

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Abstract

The SYRMEP (SYnchrotron Radiation for MEdical Physics) collaboration is active in the field of medical imaging with synchrotron radiation and is operating a dedicated bending magnet beam-line at ELETTRA, the Trieste synchrotron radiation facility. A high granularity, high efficiency (80% at 20keV) silicon microstrip X-ray detector was developed to produce digital images of mammographic phantoms and in vitro breast specimens. Images produced with this device show high image quality in terms of spatial and contrast resolution when compared to conventional mammographic images of the same test objects. Furthermore, the dose delivered to the samples is considerably lower due to the manochromaticity and energy tuneability of the beam, and to the high efficiency of the detector. Another important application of synchrotron radiation is phase contrast imaging, which is made possible by the high degree of spatial coherence of the SR sources. A feasibility study on mammographic phantoms and in vitro breast specimens has been carried out, and images from this study, recorded on film-screen systems, show great enhancement in the visibility of thin and small details without requiring any increase in the delivered dose compared to conventional absorption imaging.

Type: Proceedings paper
Title: Mammography with synchrotron radiation: Advantages brought by monochromaticity, energy tuneability and spatial coherence
Event: European Conference on Energy Dispersive X-Ray Spectrometry 1998 (EDXRS-98)
Location: BOLOGNA, ITALY
Dates: 07 June 1998 - 12 June 1998
ISBN: 88-7794-195-2
Publisher version: http://www.compositori.it/
Keywords: DIGITAL MAMMOGRAPHY, DETECTORS
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/116823
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