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    题名: Maximum-Likelihood Methods for Processing Signals From Gamma-Ray Detectors
    作者: Barrett,HH;Hunter,WCJ;Miller,BW;Moore,SK;Chen,YC;Furenlid,LR
    贡献者: 光電科學研究所
    关键词: MODULAR SCINTILLATION CAMERA;LIST-MODE LIKELIHOOD;IMAGE-RECONSTRUCTION;NUCLEAR-MEDICINE;POSITION;RESOLUTION;ARRAY;PET
    日期: 2009
    上传时间: 2010-06-29 19:41:51 (UTC+8)
    出版者: 中央大學
    摘要: In any gamma-ray detector, each event produces electrical signals on one or more circuit elements. From these signals, we may wish to determine the presence of an interaction; whether multiple interactions occurred; the spatial coordinates in two or three dimensions of at least the primary interaction; or the total energy deposited in that interaction. We may also want to compute listmode probabilities for tomographic reconstruction. Maximum-likelihood methods provide a rigorous and in some senses optimal approach to extracting this information, and the associated Fisher information matrix provides a way of quantifying and optimizing the information conveyed by the detector. This paper will review the principles of likelihood methods as applied to gamma-ray detectors and illustrate their power with recent results from the Center for Gamma-ray Imaging.
    關聯: IEEE TRANSACTIONS ON NUCLEAR SCIENCE
    显示于类别:[光電科學研究所] 期刊論文

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