We are developing a positron emission mammograph imaging system that consists of 2 planar heads (10 x 10 cm 2), each composed of 4 matrices (5 x 5 cm(2)) of scintillating crystals coupled to the same number of multi-anode PMT (Hamamatsu H8500). We are developing a readout scheme which handles the 4 x 64 output signals of each head. We are primarily interested in charge multiplexed readout schemes. The measurements presented in this paper highlight the limits of a multiplexed readout using a discretized positioning circuit (DPC) by comparison with results using either another multiplexed scheme based on symmetric charge division (SCD) or a multi-anode readout. The measurements have been performed with the H8500 PMT coupled to pixelated NaI(Tl) and YAP crystals. (c) 2006 Elsevier B.V. All rights reserved.
|Autori:||Vecchio S; Camarda M; BELCARI N; Bianchi D; Cinti MN; Del Guerra A; Herbert D; Lazzarotti M; Pani R|
|Titolo:||Preliminary study of different readout strategies for a positron emission mammograph head|
|Anno del prodotto:||2006|
|Digital Object Identifier (DOI):||10.1016/j.nima.2006.08.025|
|Appare nelle tipologie:||1.1 Articolo in rivista|