The dependence of the counting efficiency of Marinelli beakers for environmental samples on the density of the samples

Z. B. Alfassi; N. Lavi

doi:10.1016/j.apradiso.2005.01.007

The dependence of the counting efficiency of Marinelli beakers for environmental samples on the density of the samples

Z. B. Alfassi, N. Lavi

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Abstract

The effect of the density of the radioactive material packed in a Marinelli beaker on the counting efficiency was studied. It was found that for all densities (0.4-1.7 g/cm³⁾ studied the counting efficiency (ε) fits the linear log-log dependence on the photon energy (E) above 200 keV, i.e. obeying the equation ε = αEβ (α, β - parameters). It was found that for each photon energy the counting efficiency is linearly dependent on the density (ρ) of the matrix. ε=a-bρ (a, b - parameters). The parameters of the linear dependence are energy dependent (linear log-log dependence), leading to a final equation for the counting efficiency of Marinelli beaker involving both density of the matrix and the photon energy: ε = α₁·E^β1- α₂E^β2ρ.

Original language	English
Pages (from-to)	87-92
Number of pages	6
Journal	Applied Radiation and Isotopes
Volume	63
Issue number	1
DOIs	https://doi.org/10.1016/j.apradiso.2005.01.007
State	Published - 1 Jan 2005

ASJC Scopus subject areas

Radiation

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title = "The dependence of the counting efficiency of Marinelli beakers for environmental samples on the density of the samples",

abstract = "The effect of the density of the radioactive material packed in a Marinelli beaker on the counting efficiency was studied. It was found that for all densities (0.4-1.7 g/cm3) studied the counting efficiency (ε) fits the linear log-log dependence on the photon energy (E) above 200 keV, i.e. obeying the equation ε = αEβ (α, β - parameters). It was found that for each photon energy the counting efficiency is linearly dependent on the density (ρ) of the matrix. ε=a-bρ (a, b - parameters). The parameters of the linear dependence are energy dependent (linear log-log dependence), leading to a final equation for the counting efficiency of Marinelli beaker involving both density of the matrix and the photon energy: ε = α1·Eβ1- α2Eβ2ρ.",

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AU - Lavi, N.

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AB - The effect of the density of the radioactive material packed in a Marinelli beaker on the counting efficiency was studied. It was found that for all densities (0.4-1.7 g/cm3) studied the counting efficiency (ε) fits the linear log-log dependence on the photon energy (E) above 200 keV, i.e. obeying the equation ε = αEβ (α, β - parameters). It was found that for each photon energy the counting efficiency is linearly dependent on the density (ρ) of the matrix. ε=a-bρ (a, b - parameters). The parameters of the linear dependence are energy dependent (linear log-log dependence), leading to a final equation for the counting efficiency of Marinelli beaker involving both density of the matrix and the photon energy: ε = α1·Eβ1- α2Eβ2ρ.

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The dependence of the counting efficiency of Marinelli beakers for environmental samples on the density of the samples

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