Coincidence summing correction for a voluminous 152Eu source

윤은택; 강민영; 김인중; 선광민; 최희동

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자료유형: 학술저널

저자정보: 윤은택 강민영 김인중 선광민 최희동

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제52권 제6호

발행연도: 2020.1

수록면: 1,266 - 1,270 (5page)

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A code is developed to correct for the coincidence summing effect in detecting a voluminous gamma source, and this code is applied toa152Eu standardsource as a test case. The source is 1000 mL of liquid in a cylindrical shape. To calculate the coincidence summing effect, the cylindrical source is considered as 10(radial) 8(height) sectional sources. Foreach sectional source, the peak efﬁciencyand total efﬁciency are obtained by Monte Carlo simulation at each energy for 10 energies between 50 keV and 2000 keV. The efﬁciencies of each sector are then expressed as polynomials of gamma energy. To calculate the correction coefﬁcients for the coincidence summing effect, the KORSUM code is used after modiﬁcation. The magnitudes of correction are 4%e17% for the standard 152Eu source measured in this study. The relative deviation of 4.7% before the coincidence correction is reduced to 0.8% after the correction is applied to the efﬁciency based on the measured gamma line. Hence, this study has shown that a new method has been developed that is applicable for correcting the coincidence effect in a voluminous source, and the method is applied to the measured data of a standard 152Eu cylinder source

참고문헌 (20)

참고문헌 신청

R. Jedlovszky / 1982 / Coincidence-Summing Corrections / ICRM-S-10

D. S. Andreev / 1972 / Consideration of cascade transitions in determining the absolute yield of gamma rays / Instrum. Exp. Tech 15:1358~1360

G. J. McCallum / 1975 / Influence of source-detector distance on relative intensity and angular correlation measurements with Ge(Li)spectrometers / Nucl. Instrum. Methods 130:189~197

T. M. Semkow / 1990 / Coincidence summing in gamma-ray spectroscopy / Nucl. Instrum. Methods Phys. Res. A 290:437~444

M. Korun / 1993 / Coincidence summing in gamma and X-ray spectrometry / Nucl. Instrum. Methods Phys. Res. A 325:478~484

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