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An empirical formula to calculate the full energy peak efficiency of scintillation detectors

机译:计算闪烁探测器全能量峰值效率的经验公式

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This work provides an empirical formula to calculate the FEPE for different detectors using the effective solid angle ratio derived from experimental measurements. The full energy peak efficiency (FEPE) curves of the (2??*2??) NaI(Tl) detector at different seven axial distances from the detector were depicted in a wide energy range from 59.53 to 1408keV using standard point sources. The distinction was based on the effects of the source energy and the source-to-detector distance. A good agreement was noticed between the measured and calculated efficiency values for the source-to-detector distances at 20, 25, 30, 35, 40, 45 and 50cm. ? 2012 Elsevier Ltd.
机译:这项工作提供了一个经验公式,可以使用从实验测量中得出的有效立体角比率来计算不同探测器的FEPE。使用标准点源,在从59.53到1408keV的宽能范围内,描绘了在距检测器7个轴向距离不同的情况下(2?* 2?)NaI(Tl)检测器的全能量峰值效率(FEPE)曲线。区别是基于源能量和源到检测器距离的影响。在20、25、30、35、40、45和50cm处,源到检测器距离的实测效率值与计算效率值之间发现了很好的一致性。 ? 2012爱思唯尔有限公司

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