We have tested the imaging capabilities of a GaAs pixel detector using a test object developed for quality control purposes in mammography and a dedicated X-ray imaging system. The response of this detector under the same irradiation conditions has also been simulated by the EGS4 code and a comparison with an intensifying screen+film digitized image has been made. Our GaAs detector is able to perform a measurement of low-contrast details, with a minimum contrast lower than typically detected by standard mammographic film+screen system, in the same conditions of clinical routine, and this should allow for an earlier diagnosis of the breast tumor masses.
Imaging performance of a GaAs pixel detector / Amendolia, S.R., Bertolucci, E., Bisogni, M.G., Bottigli, U., Ciocci, M.A., Conti, M., Delogu, P., Fantacci, M.E., Magistrati, G., Marzulli, V., Pernigotti, E., Romeo, N., Rosso, V., Russo, P., Stefanini, A., Stumbo, S.. - In: NUOVO CIMENTO DELLA SOCIETÀ ITALIANA DI FISICA. A, NUCLEI, PARTICLES AND FIELDS. - ISSN 1124-1861. - 112:1-2(1999), pp. 167-177.
Imaging performance of a GaAs pixel detector
Russo P.;
1999
Abstract
We have tested the imaging capabilities of a GaAs pixel detector using a test object developed for quality control purposes in mammography and a dedicated X-ray imaging system. The response of this detector under the same irradiation conditions has also been simulated by the EGS4 code and a comparison with an intensifying screen+film digitized image has been made. Our GaAs detector is able to perform a measurement of low-contrast details, with a minimum contrast lower than typically detected by standard mammographic film+screen system, in the same conditions of clinical routine, and this should allow for an earlier diagnosis of the breast tumor masses.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
