In this paper we present the first tests of a digital imaging system based on a silicon pixel detector bump-bonded to an integrated circuit operating in single photon counting mode. The X-rays sensor is a 300 μm thick silicon, 14 by 14 mm2, upon which a matrix of 256 × 256 pixels has been built. The read-out chip, named MEDIPIX2, has been developed at CERN within the MEDIPIX2 Collaboration and it is composed by a matrix of 256 × 256 cells, 55 × 55 μm2. The spatial resolution properties of the system have been assessed by measuring the square wave resolution function (SWRF) and first images of a standard mammographic phantom were acquired using a radiographic tube in the clinical irradiation condition.
A Medipix2-based imaging system for digital mammography with silicon pixel detector / M. G., Bisogni; P., Delogu; M. E., Fantacci; S., Linsalata; Mettivier, Giovanni; Montesi, MARIA CRISTINA; M., Novelli; M. G., Quattrocchi; V., Rosso; Russo, Paolo; A., Stefanini. - 3:(2003), pp. 1509-1512. (Intervento presentato al convegno Nucl. Sci. Symp. and Medical Imaging Conference tenutosi a Portland, Oregon USA nel 20-24 Ottobre 2003) [10.1109/NSSMIC.2003.1352163].
A Medipix2-based imaging system for digital mammography with silicon pixel detector
METTIVIER, GIOVANNI;MONTESI, MARIA CRISTINA;RUSSO, PAOLO;
2003
Abstract
In this paper we present the first tests of a digital imaging system based on a silicon pixel detector bump-bonded to an integrated circuit operating in single photon counting mode. The X-rays sensor is a 300 μm thick silicon, 14 by 14 mm2, upon which a matrix of 256 × 256 pixels has been built. The read-out chip, named MEDIPIX2, has been developed at CERN within the MEDIPIX2 Collaboration and it is composed by a matrix of 256 × 256 cells, 55 × 55 μm2. The spatial resolution properties of the system have been assessed by measuring the square wave resolution function (SWRF) and first images of a standard mammographic phantom were acquired using a radiographic tube in the clinical irradiation condition.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
