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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.11
- 수록면
- 2,601 - 2,606 (6page)
- DOI
- https://doi.org/10.1016/j.net.2020.05.004
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초록· 키워드
오류제보하기
In this study, we expanded the performance of the existing EXVol code and performed empirical experiments and calculations. A high-resolution gamma spectroscopy system was constructed, and astandard point source and a standard volume source were measured with an HPGe detector with 43.1%relative efficiency. EXVol was verified by quantitative comparison of the detection efficiencies determined by measurements and calculations.
To introduce the concept of the detector scanning that occurs in the actual measurement into theEXVol code, a collimator was placed between the source and detector. The detection efficiency wasdetermined in the asymmetric arrangement of the source and detector with a collimator. A collimatormade of lead with a diameter of 15 mm and a thickness of 50 mm was installed between the source andthe detector to determine the detection efficiency at a specific location. The calculation result wascontour plotted so that the distribution of detection efficiency could be visually confirmed. The relativedeviation between the measurements and calculations for the coaxial and asymmetric structures was10%, and that for the collimation structure was 20%. The results of this study can be applied to researchusing g-ray measurements
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참고문헌 (10)
참고문헌 신청
Jose Rodenas / 2000 / Validation of the MCNP code for the simulation of Ge-detector calibration / Nucl. Instrum. Methods Phys. Res 450:88~97
O. Sima / 2001 / GESPECOR : a versatile tool in gamma-ray spectrometry / J. Radioanal. Nucl 248:359~364
M. Y. Kang / 2016 / Determination of HPGe peak efficiency for voluminous gamma-ray sources by using an effective solid angle method / Appl. Radiat. Isot 116:69~76
L. Moens / 1981 / Calculation of the absolute peak efficiency of gamma-ray detectors for different counting geometries / Nucl. Instrum. Methods Phys. Res 187:451~472
Tien-ko Wang / 1997 / HPGe detector efficiency calibration for extended cylinder and marinelli-beaker sources using the ESOLAN program / Appl. Radiat. Isot 48:83~95
O. Sima / 2001 / GESPECOR : a versatile tool in gamma-ray spectrometry / J. Radioanal. Nucl 248:359~364
M. Y. Kang / 2016 / Determination of HPGe peak efficiency for voluminous gamma-ray sources by using an effective solid angle method / Appl. Radiat. Isot 116:69~76
L. Moens / 1981 / Calculation of the absolute peak efficiency of gamma-ray detectors for different counting geometries / Nucl. Instrum. Methods Phys. Res 187:451~472
Tien-ko Wang / 1997 / HPGe detector efficiency calibration for extended cylinder and marinelli-beaker sources using the ESOLAN program / Appl. Radiat. Isot 48:83~95
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