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Steyn, J.; Oberholzer, P.; Botha, S.M.
Council for Scientific and Industrial Research, Pretoria (South Africa)1979
Council for Scientific and Industrial Research, Pretoria (South Africa)1979
AbstractAbstract
[en] A method involving liquid scintillation counting is described for the accurate measurement of disintegration rate of 55Fe. The method is based on the use of calculated efficiency functions together with either of the nuclides 54Mn and 51Cr as internal standards for measurement of counting efficiencies by coincidence counting. The method was used by the NAC during a recent international intercomparison of radioactivity measurements, and a summary of the results obtained by nine participating laboratories is presented. A spread in results of several percent is evident
[af]
'n Metode vir die akkurate meting van disintegrasietempo van 55Fe deur middel van vloeistofsintillasietelling, word beskryf. Die metode is gebaseer op die gebruik van berekende doeltreffendheidsfunksies tesame met een van die kernsoorte 54Mn of 51Cr as interne standaard. Laasgenoemde maak dit moontlik om teldoeltreffendhede in gemengde bronne te meet met behulp van koinsidensietelling. Die metode is onlangs deur die NVS gebruik tydens 'n internasionale vergelyking van radioaktiwiteitsmetings; die resultate van nege deelnemende laboratoriums toon 'n spreiding van etlike persentPrimary Subject
Source
1979; 16 p
Record Type
Report
Literature Type
Numerical Data
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BETA DECAY RADIOISOTOPES, CHROMIUM ISOTOPES, COUNTING TECHNIQUES, DATA, DATA FORMS, DAYS LIVING RADIOISOTOPES, ELECTRON CAPTURE RADIOISOTOPES, EVEN-ODD NUCLEI, INFORMATION, INTERMEDIATE MASS NUCLEI, IRON ISOTOPES, ISOTOPES, MANGANESE ISOTOPES, MEASURING INSTRUMENTS, NUCLEI, NUMERICAL DATA, ODD-ODD NUCLEI, RADIATION DETECTORS, RADIOISOTOPES, SCINTILLATION COUNTERS, YEARS LIVING RADIOISOTOPES
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