Document Details
PURL
(1010 K)
Title:
Determination of P32 and As76 in Reactor Effluent Water by Beta-Ray Absorption Techniques
Author(s):
Subject Terms:
AnalysisArsenic Isotopes 76P32DeterminationPhosphorus IsotopesReactor CoolantsWaste Treatment and Disposal
Document Type:
REPORT
Publication Date:
1957 Jul 02
Declassification Date:
1981 Mar 11
Accession Number:
RL-1-365701
Document Number(s):
HW-50310
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:
2026 Aug 21
Description/Abstract:
Selective beta-ray absorption techniques, which require no chemical separation, are described for the determination of P32 and As76 in reactor effluent water. The procedures take advantage of the high-energy beta-particle radiations characteristic of these radioisotopes and the relatively short half-lives of many of the other radioisotopes in the mixtures. The As76 beta particles are measured after a one day delay through an absorber sufficiently thick to stop the beta particles from the other radioisotopes. A correction for the gamma radiation seen by the detector is made from a measurement of the sample with an absorber sufficiently thick to stop all the beta-particle radiation. The P32 is measured in a similar manner after a 12 day delay which permits the As76 to decay to an insignificant amount.