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이 논문의 연구 히스토리 (4)
2018
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In this study, the mass attenuation coefficients for all five of the IAEA referencematerial samples (apparent density in a measuring bottle: 0.50~1.45 g·cm-3), including soil, milkpowder, hay and moss soil, were determined using the CT (Calibration Transmission) method. Acertified mixed gamma-ray sources including 241Am, 88Cd, 57Co, 113Sn, 85Sr and 137Cs were added tothe IAEA reference samples for the validation of present method. The self-attenuation correctionfactors for the gamma-ray energies of 59.5 keV, 88 keV, 122.1 keV, 391.7 keV, 514 keV and 661.7keV were determined and applied to the self-attenuation correction. As a result, the accuracy ofgamma-ray spectrometry for environmental samples used in this study was improved especiallyfor lower energy gamma-ray emitting radionuclides.
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참고문헌 (7)
참고문헌 신청
Al-Masri MS / 2013 / Mass attenuation coefficients of soil and sediment samples using gamma energies from 46.5 to 1332 keV / J. Environ. Radioact. 116:28~33
Berger MJ / 2010 / XCOM: photon cross section database(version 1.5) / National Institute of Standards and Technology
Byun JI / 2015 / A calibration transmission method to determine the gamma-ray linear attenuation coefficient without a collimator / Appl. Radiat. Isot. 102:70~73
Carrazana Gonzalez J / 2010 / The effect of source chemical composition on the self-attenuation corrections for low-energy gamma-rays in soil samples / Appl. Radiat. Isot. 68:360~363
Cutshall NH / 1983 / Direct analysis of 210Pb in sediment samples: Self-absorption corrections / Nucl. Instr. Method. Phys. Res. 206(1-2):309~312
Berger MJ / 2010 / XCOM: photon cross section database(version 1.5) / National Institute of Standards and Technology
Byun JI / 2015 / A calibration transmission method to determine the gamma-ray linear attenuation coefficient without a collimator / Appl. Radiat. Isot. 102:70~73
Carrazana Gonzalez J / 2010 / The effect of source chemical composition on the self-attenuation corrections for low-energy gamma-rays in soil samples / Appl. Radiat. Isot. 68:360~363
Cutshall NH / 1983 / Direct analysis of 210Pb in sediment samples: Self-absorption corrections / Nucl. Instr. Method. Phys. Res. 206(1-2):309~312
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