(A) study on dual energy x-ray computed tomography improvements = 이중에너지 엑스선 단층촬영영상장치 성능 향상에 관한 연구

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Dual energy x-ray tomography allows the decomposition of CT data into density and composition information in terms of electron density and effective atomic number, respectively. The study proposed a simple iterative algorithm to accurately calculate the distribution of effective atomic number and electron density from a pair of CT images based on linear attenuation coefficients of investigated objects. The proposed method has outstanding features compared with other relevant studies. CT energies can be selected from 50keV to 300keV and materials can be chosen from the range of 6≤Z≤50. The extensive ranges of energy and atomic number do not decline the accuracy of the final results of electron densities and atomic numbers except in few cases.
Advisors
Cho, Gyu-Seongresearcher조규성researcher
Description
한국과학기술원 : 원자력및양자공학과,
Publisher
한국과학기술원
Issue Date
2007
Identifier
264910/325007  / 020054307
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력및양자공학과, 2007.2, [ vi, 50 p. ]

Keywords

Electron Density; Linear Attenuation Coefficients; Dual Energy CT; Atomic Number; 원자 번호; 전자 밀도; 선형 감쇠 계수; 이중에너지 단층촬영

URI
http://hdl.handle.net/10203/49519
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=264910&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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