发明名称 |
Scintillation detector for three-dimensionally measuring the gamma-ray absorption position and a positron CT apparatus utilizing the scintillation detector |
摘要 |
A scintillation detector for three-dimensionally measuring the absorption position of the gamma-rays entering the detector and a positron computed tomography apparatus employing as a gamma-rays detector plural scintillation detectors arranged in the form of a ring are provided which can prevent the degradation of the spatial resolution in the peripheral region of the visual field and uniformly detect a positron distribution over the entire visual field with high resolution. The scintillation detector comprises a bundle of pillar-shaped scintillator elements and position detecting photodetectors coupled to the end surfaces of each scintillator element, and the apparatus comprises a plurality of scintillation detectors formed in a ring, each of which includes a bundle of scintillator elements, and plural position detecting photodetectors each of which is connected to both ends of the scintillator bundle.
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申请公布号 |
US4823016(A) |
申请公布日期 |
1989.04.18 |
申请号 |
US19870096459 |
申请日期 |
1987.09.15 |
申请人 |
HAMAMATSU PHOTONICS KABUSHIKI KAISHA;RESEARCH DEVELOPMENT CORPORATION OF JAPAN |
发明人 |
YAMASHITA, TAKAJI;UCHIDA, HIROSHI;SHIMIZU, KEIJI;OMURA, TOMOHIDE |
分类号 |
A61B6/03;G01T1/161;G01T1/20;G01T1/29;(IPC1-7):G01T1/164 |
主分类号 |
A61B6/03 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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