Title :
The design of a digital coincidence-detection trigger system for a RPC-based pet
Author :
Clemêncio, Filomena M C ; Loureiro, Custódio F M ; Correia, Carlos M B A
Author_Institution :
Escola Super. de Tecnologia da Saude do Porto, Porto
fDate :
Oct. 26 2007-Nov. 3 2007
Abstract :
A complex task for PET cameras is the design of an appropriate coincidence-detection trigger as it usually encompasses coincidences in a large number of channels and tight time specifications. Those requirements are even greater for a resistive plate chamber (RPC)-based detector technology as the time window specification is quite small (in the order of a few hundred picoseconds) and the number of coincidence-channels can be quite large (more than 100 in a large camera). In this work we discuss on-going work aimed at implementing the coincidence-detection algorithm inside a FPGA along with the necessary TDCs. The use of the developed solution in a first prototype of an RPC-based small animal PET and its scalability to the case of a human, all-body, PET, is discussed.
Keywords :
position sensitive particle detectors; positron emission tomography; trigger circuits; FPGA; PET cameras; RPC-based small animal PET; TDCs; digital coincidence-detection trigger system; field programmable gate array; human scalability; positron emission tomography; resistive plate chamber; time-to-digital converters; Clocks; Detectors; Digital cameras; Field programmable gate arrays; Logic; Nuclear and plasma sciences; Physics; Positron emission tomography; Protocols; Prototypes;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4436456
