A method for absolute measurements of the Ac activity in equilibrium with its progeny was developed. Measurements were performed using the triple-to-double coincidence ratio (TDCR) method in two different TDCR counters. The activity concentration of an Ac solution was determined and the solution was sent to the SIR system for a comparison. The half-life of Ac was determined by one of the TDCR counters and found to be 9.9150(63) days.
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| http://dx.doi.org/10.1016/j.apradiso.2023.110987 | DOI Listing |
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Activity measurements and calibrations for Ac in radioactive equilibrium with its progeny.
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