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Time over Threshold based digital animal PET (TODPET)

2011; Linguagem: Inglês

10.1109/nssmic.2011.6152588

1095-7863

Kenji Shimazoe, Y. Wang, H. Takahashi, Kei Kamada, Masao Yoshino, J. Kataoka, Y. Yamaya, Takayuki Yanagida, Akira Yoshikawa, Kazuaki Kumagai,

Atomic and Subatomic Physics Research

We have developed Time over Threshold (ToT) based Pr:LuAG-APD PET (TODPET) tomograph with a mixed signal front-end. The tomograph consists of 8 block detectors, each of which is composed of a 12 × 12 array of 2 × 2 x 10mm 3 Pr:LuAG crystals individually coupled with 12 × 12 UV-enhanced APD arrays. The APDs are individually read out with a custom-designed Time over Threshold ASIC and FPGA readout system. Developed PET tomograph has the energy resolution of 10% and the time resolution of 4.2ns. The 1.76 mm spatial resolution (FWHM) is achieved for the first result.