Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8176090 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2014 | 7 Pages |
Abstract
A time-over-threshold (ToT)-based positron emission tomography (TODPET) scanner was designed and fabricated. The PET scanner consisted of eight block detectors, each of which is composed of a 12Ã12 array of 2Ã2Ã10Â mm3 Pr:LuAG crystals individually coupled with a 12Ã12 UV-enhanced avalanche photodiode (APD) array. The APDs were individually read out using a custom-designed time-over-threshold application-specific integrated circuit (ASIC) and field-programmable gate array (FPGA) readout system. The PET scanner has an energy resolution of 10% and a time resolution of 4.2Â ns. A spatial resolution of 1.17Â mm (FWHM) was demonstrated in the initial results.
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Authors
K. Shimazoe, H. Takahashi, K. Kamada, A. Yoshikawa, K. Kumagai, J. Kataoka, S. Itoh, H. Sato, Y. Usuki,