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투과선량의 수치해석에 의한 전산화단층영상장치 X선의 에너지 분포결정

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Author(s)
최태진김옥배서수지
Keimyung Author(s)
Kim, Ok BaeChoi, Tae JinSuh, Soo Jhi
Department
Dept. of Radiation Oncology (방사선종양학)
Dept. of Medical Biophysics Engineering (의공학과)
Dept. of Radiology (영상의학)
Journal Title
의학물리
Issued Date
1997
Volume
8
Issue
2
Abstract
The knowledge of x-ray spectra is highly desirable in some investigation involves the differential penetrating power and absorption coefficient correction of various photon beam. The transmission data were obtained from the 80 kVp and 120 kVp of CT x-ray beam with the aluminium filter which is designed in a 30 cm of diameter and pipe-typed filter was prepared from 5.0 mm upto 92.3 mm of thickness. To obtain the reconstructed spectra of CT x-ray, the investigator used the iterative numerical analysis which has been extended to include the tungsten characteristics from experimental transmission data with energy interval of 2 keV. Comparison of the calculated transmission data from the reconstructed spectra with that of measurement shows good agreement in both 80 kVp and 120 kVp x-ray beams. This numerical analysis based on iteratively calculation of fractional exposure per energy interval shows the high potential of usefulness of determination the x-ray spectra from the attenuated beam in diagnostic energy range.
Alternative Title
Empirical Determination of a CT X-ray Spectra by Numerical Analysis using Transmission Data
Keimyung Author(s)(Kor)
김옥배
최태진
서수지
Publisher
School of Medicine
Citation
최태진 et al. (1997). 투과선량의 수치해석에 의한 전산화단층영상장치 X선의 에너지 분포결정. 의학물리, 8(2), 35–43.
Type
Article
ISSN
1226-5829
URI
https://kumel.medlib.dsmc.or.kr/handle/2015.oak/36840
Appears in Collections:
1. School of Medicine (의과대학) > Dept. of Medical Biophysics Engineering (의공학과)
1. School of Medicine (의과대학) > Dept. of Radiation Oncology (방사선종양학)
1. School of Medicine (의과대학) > Dept. of Radiology (영상의학)
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