Production and standardization of an on-demand protactinium-233 tracer
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Protactinium-233 (233Pa) was generated by neutron activation of thorium and isolated by column chromatography using an octanol-impregnated resin. Absolute activity standardization was performed on 233Pa using three independent methods, the results of which agreed within their associated uncertainties. The standardized 233Pa was used to calibrate a secondary standard ionization chamber and high purity germanium detectors to enable a rapid and traceable method for the production and quantification of this radiotracer.
KeywordsProtactinium Nuclear forensics Radiochronometry Standardization Radionuclide metrology
Funding for this research was provided by the Canadian Safety and Security Program, Project No. CSSP-2016-TI-2223.
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