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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.8
- 수록면
- 2,640 - 2,645 (6page)
- DOI
- https://doi.org/10.1016/j.net.2021.01.036
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이 논문의 연구 히스토리 (2)
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초록· 키워드
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We report the development of a gamma-ray imaging device, named Large-Area Hybrid Gamma Imager(LAHGI), featuring high imaging sensitivity and good imaging resolution over a broad energy range. Ahybrid collimation method, which combines mechanical and electronic collimation, is employed for astable imaging performance based on large-area scintillation detectors for high imaging sensitivity. Thesystem comprises two monolithic position-sensitive NaI(Tl) scintillation detectors with a crystal area of27 27 cm2 and a tungsten coded aperture mask with a modified uniformly redundant array (MURA)pattern. The performance of the system was evaluated under several source conditions. The systemshowed good imaging resolution (i.e., 6.0e8.9 FWHM) for the entire energy range of 59.5e1330 keVconsidered in the present study. It also showed very high imaging sensitivity, successfully imaging a253 mCi 137Cs source located 15 m away in 1 min; this performance is notable considering that the doserate at the front surface of the system, due to the existence of the 137Cs source, was only 0.003 mSv/h,which corresponds to ~3% of the background level
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참고문헌 (3)
참고문헌 신청
김영수 / 2018 / Position-Sensitive NaI(Tl) Detector Module for Large-Area Compton Camera / Journal of the Korean Physical Society 72(1):26~32
이현수 / 2021 / Design and performance prediction of large-area hybrid gamma imaging system (LAHGIS) for localization of low-level radioactive material / Nuclear Engineering and Technology 53(4):1259~1265
L. A. Shepp / 1982 / Maximum likelihood reconstruction for emission tomography / IEEE Trans. Med. Imag 1(2):113~122
이현수 / 2021 / Design and performance prediction of large-area hybrid gamma imaging system (LAHGIS) for localization of low-level radioactive material / Nuclear Engineering and Technology 53(4):1259~1265
L. A. Shepp / 1982 / Maximum likelihood reconstruction for emission tomography / IEEE Trans. Med. Imag 1(2):113~122
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