Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8210299 | Applied Radiation and Isotopes | 2014 | 7 Pages |
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 2Ï with a detection efficiency approximately 17 times higher than previous systems that comprised only one pair of detectors.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Radiation
Authors
Taewoong Lee, Wonho Lee,