A new liquid scintillation counting technique to resolve mixtures of two pure beta-emitting radionuclides

Methods currently available for the accurate activity resolution of dual-label solutions of pure β-emitting radionuclides are mostly time consuming and involve much effort. The goal of this thesis was therefore to devise a simpler method to achieve the same objective. The technique developed is based on elements of two liquid scintillation counting techniques that are widely used to measure single-radionuclide solutions, namely the triple-to-double coincidence ratio (TDCR) efficiency calculation technique and the CIEMAT/NIST efficiency tracing method. Double- and triple-coincidence count rates, together with the figure-of-merit P determined from an external tracer, provide sufficient information to extract the component activities of a source in a simple manner.

Grantor dc:publisher.institution

Department of Chemistry

Year dc:date.issued

2007

Author dc:creator

• Van Wyngaardt, Winifred Margaret

Advisors dc:contributor.advisor

• Simpson, B R S
• Jackson, Graham Ellis

Language dc:language.iso

eng

Handle dc:identifier.uri

http://hdl.handle.net/11427/6284

OAI identifier oai:identifier

oai:open.uct.ac.za:11427/6284