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Improved method for the assessment of ~(60)Co and ~(134)Cs point sources in samples with non-homogeneous matrix

机译:具有非均相矩阵的样本中〜(60)CO和〜(134)CS点源评估的改进方法

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摘要

The correlation method (Suvaila et al., 2013) is extended to the assessment of ~(60)Co and ~(134)Cs point sources embedded in non-homogeneous samples. Experimental data reveal a strong correlation between the efficiency ε(1173 keV) and the ratio of the count rate R in the sum peak of 2505 keV and in the peak of 1332 keV. The correlation pattern and the measured R(2505)/R(1332) give unbiased values for ε(1173 keV), independent of source position and sample matrix. Monte Carlo simulations for ~(60)Co and ~(134)Cs support this conclusion.
机译:相关方法(Suvaila等,2013)延伸到嵌入非均质样品中的〜(60)CO和〜(134)CS点源的评估。实验数据揭示了效率ε(1173keV)与计数率峰的比率与2505keV的总和峰值之间的强相关性,并且在1332keV的峰值中。相关图案和测量的R(2505)/ R(1332)给出ε(1173keV)的非偏叠值,与源位置和样品矩阵无关。 Monte Carlo模拟〜(60)CO和〜(134)CS支持这一结论。

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