@inproceedings{971286e959a4497bacfa3ef3c4607f87,
title = "A very-high resolution SPECT system based on the energy-resolved photon counting CdTe detectors",
abstract = "This paper presents preliminary experimental results obtained with a prototype SPECT system for small animal studies. This system is based on novel energy-resolved photon counting (ERPC) detectors we have recently developed for gamma ray imaging applications. The ERPC detector has basic modular configuration that offers an overall detection area of 4.5 cm × 4.5 cm, comprising of eight CdTe/CMOS detector hybrids. Each hybrid has a CdTe detector of 11 mm × 22 mm bump-bonded onto a dedicated readout ASIC that has 32 × 64 readout pixels with 350 m pitch size. The 1mm and 2mm thickness CdTe detector have both been developed. This configuration offers a very-high spatial resolution of around 350 m and an excellent energy resolution of around 3∼4 keV at 140 keV. The prototype SPECT system that consists of two or four ERPC detectors is mounted on a system gantry rotating around a horizontal axis. The detectors are coupled to apertures with differently sized pinholes. In order to utilize the imaging information provided by the ERPC detector, we have developed a comprehensive system modelling and calibration method that accounts for the irregular shapes and physical details in the collimation apertures. Detailed system design and experimental procedures will be described in this paper.",
keywords = "Energy-resolved photon counting detector, SPECT",
author = "L. Cai and G. Fu and Tan, {J. W.} and Meng, {Ling Jian}",
year = "2010",
doi = "10.1109/NSSMIC.2010.5874300",
language = "English (US)",
isbn = "9781424491063",
series = "IEEE Nuclear Science Symposium Conference Record",
pages = "2788--2792",
booktitle = "IEEE Nuclear Science Symposuim and Medical Imaging Conference, NSS/MIC 2010",
note = "2010 IEEE Nuclear Science Symposium, Medical Imaging Conference, NSS/MIC 2010 and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors, RTSD 2010 ; Conference date: 30-10-2010 Through 06-11-2010",
}