Low level activity determination by means of gamma spectrometry with respect to the natural background fluctuation
Language English Country Great Britain, England Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
23562437
DOI
10.1016/j.apradiso.2013.03.017
PII: S0969-8043(13)00105-X
Knihovny.cz E-resources
- Keywords
- Activity determination, Background fluctuation, Gamma spectrometry, MDA,
- MeSH
- Algorithms * MeSH
- Equipment Failure Analysis MeSH
- Artifacts * MeSH
- Radiation Dosage MeSH
- Equipment Design MeSH
- Background Radiation * MeSH
- Reproducibility of Results MeSH
- Sensitivity and Specificity MeSH
- Spectrometry, Gamma instrumentation methods MeSH
- Thorium analysis MeSH
- Uranium analysis MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Thorium MeSH
- Uranium MeSH
The determination of low level activities of natural radionuclides from the uranium and thorium series by gamma-spectrometry faces the problem of proper natural background subtraction. Background fluctuation can cause differences in activity determination. Also the minimum detectable activity (MDA) of natural and artificial radionuclides can be influenced by background fluctuation. In this paper, results of the background fluctuation of shielded HPGe detectors with relative efficiency of 50-150% are presented together with the assessment of its influence on the determination of natural and artificial radionuclides.
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