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A cubic gamma camera with an active collimator
- Authors
- Lee, Taewoong; Lee, Wonho
- Issue Date
- 8월-2014
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Cubic gamma camera; Mechanical collimation; Electronic collimation; Active collimator
- Citation
- APPLIED RADIATION AND ISOTOPES, v.90, pp.102 - 108
- Indexed
- SCIE
SCOPUS
- Journal Title
- APPLIED RADIATION AND ISOTOPES
- Volume
- 90
- Start Page
- 102
- End Page
- 108
- ISSN
- 0969-8043
- Abstract
- Mechanical collimation with photon absorption and electronic collimation using Compton scattering are combined to form a cubic gamma camera with an active collimator. The collimator is made active by constructing it with a uniformly redundant array of patterned Bi4Ge3O12 (BGO) scintillators, which not only attenuates incident radiations but also detects scattered radiation, in a gamma-camera consisting of and five planar CsI(Na) scintillators. The entire module forms a cubic structure that generates images on the basis of radiation interactions from every direction. The coverage angle for detecting scattered radiation is 2 pi with a detection efficiency approximately 17 times higher than previous systems that comprised only one pair of detectors. (C) 2014 Elsevier Ltd. All rights reserved.
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