کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1833682 | 1027561 | 2006 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Calculation of “LS-curves” for coincidence summing corrections in gamma ray spectrometry Calculation of “LS-curves” for coincidence summing corrections in gamma ray spectrometry](/preview/png/1833682.png)
When coincidence summing correction factors for extended samples are calculated in gamma-ray spectrometry from full-energy-peak and total efficiencies, their variation over the sample volume needs to be considered. In other words, the correction factors cannot be computed as if the sample were a point source. A method developed by Blaauw and Gelsema takes the variation of the efficiencies over the sample volume into account. It introduces the so-called LS-curve in the calibration procedure and only requires the preparation of a single standard for each sample geometry. We propose to replace the standard preparation by calculation and we show that the LS-curves resulting from our method yield coincidence summing correction factors that are consistent with the LS values obtained from experimental data.
Journal: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment - Volume 556, Issue 2, 15 January 2006, Pages 543–546