@inproceedings{1f614b86797d4dd3b5da7a28b555b972,
title = "A prototype anger-type detector for PET using LSO and large-area APDs",
abstract = "Spatial resolution in positron emission tomography has steadily improved over the years, but remains substantially worse than in other imaging modalities, currently at ∼2 mm for the most popular commercial tomographs. This is a serious limitation particularly for imaging mice, which have great potential in preclinical PET research because of their compatibility with genetic manipulation. A novel gamma-ray detector design which can achieve high resolution and sensitivity and also facilitates depth of interaction measurement has been developed. It consists of a slab of LSO and arrays of large-area avalanche photodiodes (APDs) on both sides which are used in a light sharing (Anger-type) scheme. A fully instrumented prototype detector has been constructed comprising a 10 mm thick LSO crystal and an array of 7 square APDs (each 11 mm × 11 mm in area) optically coupled to each side. Preliminary measurements carried with a collimated source mounted on a computer controlled X-Y translational stage demonstrate a resolution of ∼2.5mm FWHM between the center of two APDs. Optimization of electronics noise factors is critical to improving detector performance.",
author = "S. Krishnamoorthy and P. Vaska and S. Stoll and M. Purschke and Pratte, \{J. F.\} and Woody, \{C. L.\} and Schlyer, \{D. J.\} and P. O'Connor",
year = "2005",
doi = "10.1109/NSSMIC.2005.1596925",
language = "English",
isbn = "0780392213",
series = "IEEE Nuclear Science Symposium Conference Record",
pages = "2845--2848",
booktitle = "2005 IEEE Nuclear Science Symposium Conference Record -Nuclear Science Symposium and Medical Imaging Conference",
note = "Nuclear Science Symposium Conference Record, 2005 IEEE ; Conference date: 23-10-2005 Through 29-10-2005",
}