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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 대한전자공학회 IEIE Transactions on Smart Processing & Computing IEIE Transactions on Smart Processing & Computing Vol.6 No.1
- 발행연도
- 2017.2
- 수록면
- 66 - 70 (5page)
이용수
초록· 키워드
오류제보하기
Radioactive materials are used in medicine, non-destructive testing, and nuclear plants. Source localization is especially important during nuclear decommissioning and decontamination because the actual location of the radioactive source within nuclear waste is often unknown. The coded-aperture imaging technique started with space exploration and moved into X-ray and gamma ray imaging, which have imaging process characteristics similar to each other. In this study, we simulated 21x21 and 37x37 coded aperture collimators based on a modified uniformly redundant array (MURA) pattern to make a gamma imaging system that can localize a gamma-ray source. We designed a 21x21 coded aperture collimator that matches our gamma imaging detector and did feasibility experiments with the coded aperture imaging system. We evaluated the performance of each collimator, from 2 mm to 10 mm thicknesses (at 2 mm intervals) using root mean square error (RMSE) and sensitivity in a simulation. . In experimental results, the full width half maximum (FWHM) of the point source was 5.09° at the center and 4.82° at the location of the source was 9°. We will continue to improve the decoding algorithm and optimize the collimator for high-energy gamma rays emitted from a nuclear power plant.
목차
Abstract
1. Introduction
2. Materials and Methods
3. Results
4. Discussion and Conclusion
References
참고문헌 (8)
참고문헌 신청
Y. Shao et al., “Development of a PET Detector System Compatible with MRI/NMR Systems”, IEEE Trans. Nucl. Sci., Vol. 44, No. 3, 1167-1171, 1997. Article (CrossRef Link)
Joshi, Sonal. Coded Aperture Imaging Applied to Pixelated CdZnTe Detectors, PhD diss., University of Michigan, 2014. Article (CrossRef Link)
Tumerl, T. et al., “All-sky x-ray & gamma-ray astronomy monitor(AXGAM)”, IEEE Trans. Nucl. Sci., 44 (3), 572-576, 1997. Article (CrossRef Link)
Gehrels et al., “The swift gamma ray burst mission.” Astrophysical, J., 611 (2), 1005-1020, 2004. Article (CrossRef Link)
Hong et al., “Laboratory coded aperture imaging experiments: radial hole coded masks and depthsensitive CZT detectors”, In: Proceedings SPIE, Hard XRay and Gamma-Ray Detector Physics VI, 5540, pp. 1-10, 2004. Article (CrossRef Link)
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UCI(KEPA) : I410-ECN-0101-2017-569-002238458