Preliminary study of different readout strategies for a positron emission mammograph head
| Autor: | D. Herbert, A. Del Guerra, M.N. Cinti, Nicola Belcari, Roberto Pani, M. Lazzarotti, M. Camarda, Sara Vecchio, Daniele Bianchi |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: |
Position sensitive photomultiplier
Physics Nuclear and High Energy Physics Photomultiplier Charge division multiplexed readout Physics::Instrumentation and Detectors business.industry Physics::Medical Physics Astrophysics::Instrumentation and Methods for Astrophysics multi-anode readout dpc flat panel position-sensitive photomultiplier scd Multiplexing Flat panel Optics Planar Head (vessel) Positron emission business Instrumentation |
| Popis: | We are developing a positron emission mammograph imaging system that consists of 2 planar heads (10 � 10 cm 2 ), each composed of 4 matrices (5 � 5c m 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 � 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. |
| Databáze: | OpenAIRE |
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