Evaluation of different methods for measuring 89Sr and 90Sr: Measurement uncertainty for the different methods as a function of the activity ratio
Journal article, 2018

In case of a radiological emergency situation involving e.g. fission of uranium or plutonium, analysis of radioactive strontium will be of importance. The primary radionuclides of interest are90Sr, its progeny90Y and89Sr. A few days following an event,89Sr will be the predominant radioisotope of strontium. Most methods found in the literature are valid and applicable when measuring90Sr, but when samples contain both89Sr/90Sr interference problematics arise. How these interferences are dealt with will have an effect on the uncertainty of the90Sr determination. This work aims at evaluating three measurement approaches, all mentioned in the literature, with respect to the measurement uncertainty when determining90Sr in an emergency preparedness situation and to propose a suitable measurement strategy.

89Sr

90Sr

Emergency preparedness

Deconvolution

Spectrum subtraction

Measurement uncertainty

Author

Stina Holmgren Rondahl

Swedish Defence Research Agency (FOI)

Henrik Ramebäck

Swedish Defence Research Agency (FOI)

Chalmers, Chemistry and Chemical Engineering, Energy and Material, Nuclear Chemistry

Applied Radiation and Isotopes

0969-8043 (ISSN)

Vol. 140 87-95

Subject Categories

Other Medical Engineering

Analytical Chemistry

Other Civil Engineering

DOI

10.1016/j.apradiso.2018.06.016

More information

Latest update

12/10/2018