RT Journal Article
T1 Real-Time Digital Timing in Positron Emission Tomography
A1 Guerra, P.
A1 Ortuño, Juan E.
A1 Kontaxakis, G.
A1 Ledesma Carbayo, María Jesús
A1 Vaquero López, Juan José
A1 Desco Menéndez, Manuel
A1 Santos, Andrés
AB Positron emission tomography (PET) requires accurate timing of scintillation events to properly discriminate between coincident and noncoincident pairs. The traditional solution to timing is based on custom application specific integrated circuits (ASIC) designs, whose cost may not be justified in the design of experimental small animal PET scanners. The new generation of PET scanners introduces the idea of continuous sampling of the detected scintillation pulse, replacing event-triggered acquisition front-ends. This approach enables new options to the timing procedure based on digital processing of the sampled pulse signal. This work proposes a time stamping algorithm based on the optically matched filter and compares the potential performance benefits of this approach versus other FIR-based timing algorithms, some of which have been already implemented by different authors. Results show that the coincidence timing resolution may be as low as 1.5 ns without the need of expensive high-speed converters when the proper signal processing is applied
PB IEEE
SN 0018-9499
YR 2008
FD 2008-12-08
LK https://hdl.handle.net/10016/9957
UL https://hdl.handle.net/10016/9957
LA eng
NO IEEE Nuclear and Plasma Sciences Society
DS e-Archivo
RD 26 may. 2024