シンチカメラ及び電算機による各種コリメータ特性の検討

概要

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There are various methods to obtain performance of collimators. We tested the performance of scanner collimators and renogram collimators with use of a scintilation camera and a computer for nuclear medicine. The test was done with methods we developed. The methods are as follows. We changed a detector of collimator to mesure RI-source. As a measuring apparatus a detector of scintilation camera without collimator was used. RI-activity through collimator from RI-source was measured by a detector of scintilation camera connected to a computer for nuclear medicine. First, the measurement was done by changing the distance between the collimator and the camera detector, and the data were fed into the computer for a minute at each distance. Secondly, the measurement was done by moving the collimator continuously, after removal of a detector of scintilation camera, and by moving the detector of scintilation camera simultaneously, after the removal of collimator in parallel. With the first method, resolution of scanner collimators were obtained, and with second method, sensitivity and isoresponce curves of renogram collimators and scanner collimators were obtained easily and speedily. These methods were useful for comparison of relative performance between various collimators.
公益社団法人日本放射線技術学会の論文
1980-05-01