방사성동위원소 위치에 따른 산업용 SPECT 성능에미치는 영향
Effect of Radioisotope Position on Performance of Industrial SPECT
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Demand of fluid flow visualization has increased in industrial processes, because medicalimaging technology is highly developed. As a part of the industrial process imaging technology,industrial single photon emission computed tomography (SPECT) system was developed to measurethe cross-sectional distribution of the process fluid. The SPECT consists of 36 NaI (Tl) detectorswith the hexagonal configuration. Reconstructed images were acquired for various positionsof radioactive source to estimate SPECT device performance. To evaluate the reliability of theexperimental results, the Monte Carlo simulation results are compared with experimental results. In general, the experimental and simulation results were consistent. However, as the source positionwas getting far from the center of the reactor, the accuracy of reconstructed images was compromised. It seems to be due to the inconsistent spatial resolution of the collimators according tothe source position.
Abstract
Demand of fluid flow visualization has increased in industrial processes, because medicalimaging technology is highly developed. As a part of the industrial process imaging technology,industrial single photon emission computed tomography (SPECT) system was developed to measurethe cross-sectional distribution of the process fluid. The SPECT consists of 36 NaI (Tl) detectorswith the hexagonal configuration. Reconstructed images were acquired for various positionsof radioactive source to estimate SPECT device performance. To evaluate the reliability of theexperimental results, the Monte Carlo simulation results are compared with experimental results. In general, the experimental and simulation results were consistent. However, as the source positionwas getting far from the center of the reactor, the accuracy of reconstructed images was compromised. It seems to be due to the inconsistent spatial resolution of the collimators according tothe source position.
참고문헌 (7)
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