2 documents found, page 1 of 1
Clear-PEM: A PET imaging system dedicated to breast cancer diagnostics
Abreu, M. C.; Aguiar, D.; Albuquerque, E.; Almeida, F. G.; Almeida, P.; Amaral, P.; Auffray, E.; Bento, P.; Bruyndonckx, P.; Bugalho, R.; Carriço, B.The Clear-PEM scanner for positron emission mammography under development is described. The detector is based on pixelized LYSO crystals optically coupled to avalanche photodiodes and readout by a fast low-noise electronic system. A dedicated digital trigger (TGR) and data acquisition (DAQ) system is used for on-line selection of coincidence events with high efficiency, large bandwidth and small dead-time. A sp...
Monte Carlo simulation of a Gamma Camera and experimental validation
Abreu, M. C.; Tomé, B.; Santos, N.; Mendes, P. Rato; Rodrigues, S.The purpose of this work was the Monte Carlo simulation of the Siemens E.Cam Dual Head Gamma Camera and consequent experimental validation, with the aim to further study and to improve the current understandingconcerning the operation of these systems, this way contributing to the development of detectors with betterenergy resolution, sensitivity, spatial resolution and linearity. The geometry and characteristi...