Estimation of errors due to inhomogeneous distribution of radionuclides in lungs

O. Pelled; U. German; G. Pollak; Z. B. Alfassi

doi:10.1016/j.nima.2006.04.036

Estimation of errors due to inhomogeneous distribution of radionuclides in lungs

O. Pelled, U. German, G. Pollak, Z. B. Alfassi

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7 Scopus citations

Abstract

The uncertainty in the activity determination of uranium contamination due to real inhomogeneous distribution and assumption of homogenous distribution can reach more than one order of magnitude when using one detector in a set of 4 detectors covering most of the whole lungs. Using the information from several detectors may improve the accuracy, as obtained by summing the responses from the 3 or 4 detectors. However, even with this improvement, the errors are still very large, up to almost a factor of 10 when the analysis is based on the 92 keV energy peak and up to 7 for the 185 keV peak.

Original language	English
Pages (from-to)	491-495
Number of pages	5
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	564
Issue number	1
DOIs	https://doi.org/10.1016/j.nima.2006.04.036
State	Published - 1 Aug 2006

Keywords

Errors
Inhomogeniety
Lung counter

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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10.1016/j.nima.2006.04.036

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abstract = "The uncertainty in the activity determination of uranium contamination due to real inhomogeneous distribution and assumption of homogenous distribution can reach more than one order of magnitude when using one detector in a set of 4 detectors covering most of the whole lungs. Using the information from several detectors may improve the accuracy, as obtained by summing the responses from the 3 or 4 detectors. However, even with this improvement, the errors are still very large, up to almost a factor of 10 when the analysis is based on the 92 keV energy peak and up to 7 for the 185 keV peak.",

keywords = "Errors, Inhomogeniety, Lung counter",

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AU - Pelled, O.

AU - German, U.

AU - Pollak, G.

AU - Alfassi, Z. B.

PY - 2006/8/1

Y1 - 2006/8/1

N2 - The uncertainty in the activity determination of uranium contamination due to real inhomogeneous distribution and assumption of homogenous distribution can reach more than one order of magnitude when using one detector in a set of 4 detectors covering most of the whole lungs. Using the information from several detectors may improve the accuracy, as obtained by summing the responses from the 3 or 4 detectors. However, even with this improvement, the errors are still very large, up to almost a factor of 10 when the analysis is based on the 92 keV energy peak and up to 7 for the 185 keV peak.

AB - The uncertainty in the activity determination of uranium contamination due to real inhomogeneous distribution and assumption of homogenous distribution can reach more than one order of magnitude when using one detector in a set of 4 detectors covering most of the whole lungs. Using the information from several detectors may improve the accuracy, as obtained by summing the responses from the 3 or 4 detectors. However, even with this improvement, the errors are still very large, up to almost a factor of 10 when the analysis is based on the 92 keV energy peak and up to 7 for the 185 keV peak.

KW - Errors

KW - Inhomogeniety

KW - Lung counter

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JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1

ER -

Estimation of errors due to inhomogeneous distribution of radionuclides in lungs

Abstract

Keywords

ASJC Scopus subject areas

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