Publication Details

Safavi-Naeini, M., Franklin, D. R., Petasecca, M., Lerch, M. L. F., Kirkham, R., Moorhead, G., Dunn, P., De Geronimo, G. & Rosenfeld, A. B. (2009). SiPM based detector module and digital data acquisition system for PET: Initial results. Nuclear Science Symposium Conference (pp. 2679-2682). IEEE.


A novel detector module configuration based on silicon photomultiplier (SiPM) detectors with LYSO scintillators, a multichannel mixed analog/digital ASIC and an FPGA-based digital data acquisition system has been developed for preclinical positron emission tomography (PET). The SCEPTER ASIC, originally developed for soft X-ray detection at Brookhaven National Laboratory, has a unique architecture incorporating multiple peak detectors and time-to-amplitude converters, and offers an extremely low dead time, making it ideal for coincidence detection. A representative pair of channels in the prototype system has been characterised. Measured energy and timing resolutions are reported for coincidences between a singlepixel SiPM detector and a conventional PMT. A timing resolution of 11.7 ns was achieved during a 48 hour run. Energy resolution for the SiPM device and data acquisition system was found to be 17%.

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