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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 337 - 343 (7page)
- DOI
- https://doi.org/10.1016/j.net.2020.06.013
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초록· 키워드
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In this work, self-absorption correction factor related to the variation of the composition and the densityof soil samples were evaluated using the p-type HPGe detector. The validated MCNP5 simulation modelof this detector was used to evaluate its Full Energy Peak Efficiency (FEPE) under the variation of thecomposition and the density of the analysed samples. The results indicates that FEPE calculation of lowgamma ray is affected by the composition and the density of soil samples. The self-absorption correctionfactors for different gamma-ray energies which was fitted as a function of FEPEs via density and energyand fitting parameters as polynomial function for the logarithm neper of gamma ray energy help tocalculate quickly the detection efficiency of detector. Factor Analysis for the influence of the elementcomposition in analysed samples on the FEPE indicates the FEPE distribution changes from non-metal tometal groups when the gamma ray energy increases from 92 keV to 238 keV. At energies above 238 keV,the FEPE primarily depends only on the metal elements and is significantly affected by aluminium andsilicon composition in soil samples.
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참고문헌 (28)
참고문헌 신청
N. Q. Huy / 2014 / A semi-empirical approach to analyze the activities of cylindrical radioactive samples using gamma energies from 185 to 1764 keV / Appl. Radiat. Isot 94:82~88
J. P. Bolivar / 1997 / On self-attenuation corrections in gamma-ray spectrometry / Appl. Radiat. Isot 48:1125~1126
C. A. McMahon / 2004 / Determination of self-absorption corrections for gamma analysis of environmental samples : comparing gamma-absorption curves and spiked matrix-matched samples / Appl. Radiat. Isot 60:571~577
P. Jodłowski / 2017 / Determination of the self-attenuation based on the sample composition in gamma-ray spectrometry of 210Pb : requirements for the scope of chemical analyses / J. Radioanal. Nucl. Chem 311:1511~1516
A. E. M. Khater / 2008 / A simplified gamma-ray self-attenuation correction in bulk samples / Appl. Radiat. Isot 66:407~413
J. P. Bolivar / 1997 / On self-attenuation corrections in gamma-ray spectrometry / Appl. Radiat. Isot 48:1125~1126
C. A. McMahon / 2004 / Determination of self-absorption corrections for gamma analysis of environmental samples : comparing gamma-absorption curves and spiked matrix-matched samples / Appl. Radiat. Isot 60:571~577
P. Jodłowski / 2017 / Determination of the self-attenuation based on the sample composition in gamma-ray spectrometry of 210Pb : requirements for the scope of chemical analyses / J. Radioanal. Nucl. Chem 311:1511~1516
A. E. M. Khater / 2008 / A simplified gamma-ray self-attenuation correction in bulk samples / Appl. Radiat. Isot 66:407~413
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