The SYRMEP (SYnchrotron Radiation for MEdical Physics) collaboration is presently taking data at a beamline at the synchrotron ELETTRA in Trieste to study the performances of a digital silicon pixel imaging system for mammography. Images are obtained with a scanning technique in the energy range 15-30 keV. The readout electronics operates in a single photon counting mode with a photon rate of about 106/(mm2s), which is still 4 times lower than the maximum rate reachable with the present beamline configuration. Two different detector layouts have been designed, the first one consisting of a single-layer silicon microstrip detector positioned edge-on with respect to the beam, and the second innovative one represented by a matrix of these detectors stacked to cover the full beam dimension (100 × 4mm2). We present here the results obtained with a single-layer detector and a double-layer detector (both 5cm wide) with mammographie phantoms and human breast tissue.
Arfelli, F., Bonvicini, V., Bravin, A., Cantatore, G., Castelli, E., Dalla Palma, L., et al. (1998). At the frontiers of digital mammography: SYRMEP. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT, 409(1-3), 529-533 [10.1016/S0168-9002(97)01309-0].
At the frontiers of digital mammography: SYRMEP
Bravin AMembro del Collaboration Group
;
1998
Abstract
The SYRMEP (SYnchrotron Radiation for MEdical Physics) collaboration is presently taking data at a beamline at the synchrotron ELETTRA in Trieste to study the performances of a digital silicon pixel imaging system for mammography. Images are obtained with a scanning technique in the energy range 15-30 keV. The readout electronics operates in a single photon counting mode with a photon rate of about 106/(mm2s), which is still 4 times lower than the maximum rate reachable with the present beamline configuration. Two different detector layouts have been designed, the first one consisting of a single-layer silicon microstrip detector positioned edge-on with respect to the beam, and the second innovative one represented by a matrix of these detectors stacked to cover the full beam dimension (100 × 4mm2). We present here the results obtained with a single-layer detector and a double-layer detector (both 5cm wide) with mammographie phantoms and human breast tissue.
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