Title :
Time over Threshold based digital animal PET (TODPET)
Author :
Shimazoe, K. ; Wang, Y. ; Takahashi, H. ; Kamada, K. ; Yoshino, M. ; Kataoka, J. ; Yamaya, Y. ; Yanagida, T. ; Yoshikawa, A. ; Kumagai, K.
Author_Institution :
Dept. of Bioeng., Univ. of Tokyo, Tokyo, Japan
Abstract :
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 10mm3 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.
Keywords :
application specific integrated circuits; avalanche photodiodes; biomedical electronics; field programmable gate arrays; lutetium compounds; positron emission tomography; praseodymium; ASIC; FPGA readout system; Lu3Al5O12:Pr; Pr:LuAG crystals; UV-enhanced APD arrays; block detectors; energy resolution; mixed signal front-end; time over threshold based digital animal PET; time resolution; Application specific integrated circuits; Biology; CMOS integrated circuits; CMOS technology; Field programmable gate arrays; Image resolution; Multiplexing; Avalanche Photo Diode (APD); LuAG; Positron Emission Tomography (PET); time over threshold (ToT);
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2011 IEEE
Conference_Location :
Valencia
Print_ISBN :
978-1-4673-0118-3
DOI :
10.1109/NSSMIC.2011.6152588
