TY - JOUR
T1 - A novel radiation detector for removing scattered radiation in chest radiography
T2 - Monte Carlo simulation-based performance evaluation
AU - Kim, J.
AU - Roh, Y. H.
AU - Yoon, Y.
AU - Kim, K.
AU - Kim, J.
AU - Morishita, J.
N1 - Publisher Copyright:
© 2016 IOP Publishing Ltd and Sissa Medialab srl.
Copyright:
Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2016/10/19
Y1 - 2016/10/19
N2 - Scattered radiation is the main reason for the degradation of image quality and the increased patient exposure dose in diagnostic radiology. In an effort to reduce scattered radiation, a novel structure of an indirect flat panel detector has been proposed. In this study, a performance evaluation of the novel system in terms of image contrast as well as an estimation of the number of photons incident on the detector and the grid exposure factor were conducted using Monte Carlo simulations. The image contrast of the proposed system was superior to that of the no-grid system but slightly inferior to that of the parallel-grid system. The number of photons incident on the detector and the grid exposure factor of the novel system were higher than those of the parallel-grid system but lower than those of the no-grid system. The proposed system exhibited the potential for reduced exposure dose without image quality degradation; additionally, can be further improved by a structural optimization considering the manufacturer's specifications of its lead contents.
AB - Scattered radiation is the main reason for the degradation of image quality and the increased patient exposure dose in diagnostic radiology. In an effort to reduce scattered radiation, a novel structure of an indirect flat panel detector has been proposed. In this study, a performance evaluation of the novel system in terms of image contrast as well as an estimation of the number of photons incident on the detector and the grid exposure factor were conducted using Monte Carlo simulations. The image contrast of the proposed system was superior to that of the no-grid system but slightly inferior to that of the parallel-grid system. The number of photons incident on the detector and the grid exposure factor of the novel system were higher than those of the parallel-grid system but lower than those of the no-grid system. The proposed system exhibited the potential for reduced exposure dose without image quality degradation; additionally, can be further improved by a structural optimization considering the manufacturer's specifications of its lead contents.
KW - Detector modelling and simulations I (interaction of radiation with matter
KW - X-ray radiography and digital radiography (DR)
KW - etc)
KW - interaction of hadrons with matter
KW - interaction of photons with matter
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U2 - 10.1088/1748-0221/11/10/T10008
DO - 10.1088/1748-0221/11/10/T10008
M3 - Article
AN - SCOPUS:85068514498
SN - 1748-0221
VL - 11
JO - Journal of Instrumentation
JF - Journal of Instrumentation
IS - 10
M1 - T10008
ER -