Coincidence summing corrections for the natural decay series in γ-ray spectrometry

作者: M Garcı́a-Talavera , J.P Laedermann , M Décombaz , M.J Daza , B Quintana

DOI: 10.1016/S0969-8043(00)00318-3

关键词:

摘要: Using a Monte Carlo code and Markov formalism to describe the decay schemes, coincidence-summing correction factors can be calculated with suitable accuracy. For two dierent measuring geometries an HPGe detector, experimental have been shown closely agree for 152 Eu. The simulation method has subsequently applied in assessing need corrections members of uranium, thorium actinium series measurable by g-spectrometry. Correction were predominant g emissions significantly aected eects correctness our calculations tested environmental samples. test makes it evident that order obtain reliable unbiased activity values some natural radionuclides coincidence summing cannot neglected measurements at small source‐ detector distances. # 2001 Elsevier Science Ltd. All rights reserved.

参考文章(12)
M. Ivanovich, R. S. Harmon, Uranium-series disequilibrium : applications to earth, marine, and environmental science Clarendon Press , Oxford University Press. ,(1992)
R.G. Helmer, R.J. Gehrke, Calculation of coincidence summing corrections for a specific small soil sample geometry Radioactivity and Radiochemistry. ,vol. 8, ,(1996)
Marc Décombaz, Jean-Jacques Gostely, Jean-Pascal Laedermann, Coincidence-summing corrections for extended sources in gamma-ray spectrometry using Monte Carlo simulation Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 312, pp. 152- 159 ,(1992) , 10.1016/0168-9002(92)90146-U
Surinder Singh, D. Mehta, R.R. Garg, Sudhir Kumar, M.L. Garg, Nirmal Singh, P.C. Mangal, J.H. Hubbell, P.N. Trehan, Average l-shell fluorescence yields for elements 56 ⩽ Z ⩽ 92 Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 51, pp. 5- 10 ,(1990) , 10.1016/0168-583X(90)90531-X
Richard B. Firestone, Virginia S. Shirley, Table of isotopes ,(1978)
M. Korun, R. Martinčič, Coincidence summing in gamma and X-ray spectrometry Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 325, pp. 478- 484 ,(1993) , 10.1016/0168-9002(93)90394-W
B. Quintana, F. Fernández, Continuous component determination in γ-ray spectra Nuclear Instruments & Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment. ,vol. 411, pp. 475- 493 ,(1998) , 10.1016/S0168-9002(98)00334-9
M. Garcı́a-Talavera, H. Neder, M.J. Daza, B. Quintana, Towards a proper modeling of detector and source characteristics in Monte Carlo simulations Applied Radiation and Isotopes. ,vol. 52, pp. 777- 783 ,(2000) , 10.1016/S0969-8043(99)00244-4
Begoña Quintana, Francisco Fernandez, AN EMPIRICAL METHOD TO DETERMINE COINCIDENCE-SUMMING CORRECTIONS IN GAMMA SPECTROMETRY Applied Radiation and Isotopes. ,vol. 46, pp. 961- 964 ,(1995) , 10.1016/0969-8043(95)00182-D