Document Details
PURL
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Title:
The Determination of Cu64 in Reactor Effluent Water by Coincidence Counting of the Positron Annihilation Radiation
Author(s):
Subject Terms:
Coolant Monitoring CopperDeterminationCopper Isotopes Cu64Fuels and MaterialsEngineeringGamma SpectrometersDesignHanford ProductionReactors PerformanceReactor Technology
Document Type:
REPORT
Publication Date:
1956 Oct 12
Declassification Date:
1959 Oct 21
Accession Number:
RL-1-364480
Document Number(s):
HW--45636
Originating Research Org.:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); General Electric Co., Richland, WA (United States). Hanford Atomic Products Operation
OpenNet Entry Date:
2014 Oct 17
OpenNet Modified Date:
2024 Nov 12
Description/Abstract:
A method is described for quantitative measurement of Cu64, without chemical separation, in a mixture of reactor effluent water radioisotopes. The method is based on the measurement of the annihilation radiations from Cu64 positron decay. The sample to be measured is placed between 2 NaI(Tl) detectors, and the coincident positron annihilation photons are measured by means of a coincidence-gamma-ray spectrometer. Na22, a long-lived positron emitting isotope, serves as a permanent standard for determining the overall geometry of the apparatus prior to a Cu64 determination.