The general-purpose EGS4 code has been used to evaluate the efficiency, the energy and the spatial resolution of a silicon crystal with double-side microstrips readout to detect X-rays in the diagnostic energy range (10–100 keV). A single crystal configuration, a sandwich arrangement with a high-Z converter foil in between two crystals and a multicrystal configuration have been investigated. The simulation with a low energy spectrum X-ray beam and a breast phantom has shown that this type of detector would be of valuable use in mammography applications: breast calcification with a diameter smaller than 500 μm can be easily identified.
Use of EGS4 for the evaluation of the performance of a silicon detector for X-ray digital radiography / W., Bencivelli; Bertolucci, Ennio; U., Bottigli; A., Del Guerra; D., Mazzei; A., Messineo; W. R., Nelson; P., Randaccio; V., Rosso; Russo, Paolo; A., Stefanini. - In: NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH. SECTION A, ACCELERATORS, SPECTROMETERS, DETECTORS AND ASSOCIATED EQUIPMENT. - ISSN 0168-9002. - 305:(1991), pp. 574-580. [10.1016/0168-9002(91)90159-N]
Use of EGS4 for the evaluation of the performance of a silicon detector for X-ray digital radiography
BERTOLUCCI, ENNIO;RUSSO, PAOLO;
1991
Abstract
The general-purpose EGS4 code has been used to evaluate the efficiency, the energy and the spatial resolution of a silicon crystal with double-side microstrips readout to detect X-rays in the diagnostic energy range (10–100 keV). A single crystal configuration, a sandwich arrangement with a high-Z converter foil in between two crystals and a multicrystal configuration have been investigated. The simulation with a low energy spectrum X-ray beam and a breast phantom has shown that this type of detector would be of valuable use in mammography applications: breast calcification with a diameter smaller than 500 μm can be easily identified.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
