Standardization of 110mAg by liquid scintillation and 4pibeta-gamma coincidence counting
The nuclide 110Ag is a beta-gamma emitter with a very complex decay scheme, including more than 50 gamma-rays. It has been standardized by two methods: liquid scintillation counting (LSC) and 4pibeta(pc)-gamma coincidence measurements. In the LSC measurements the CIEMAT/NIST method was used, with 3H being used as a tracer for efficiency calculations. In the 4pibeta(pc)-gamma standardization, Monte Carlo calculations have been made to determine the optimal measurement conditions. Results obtained with both methods for the activity concentration of the solution are in good agreement.
Garcia-Torano
E
Metrologia de Radiaciones Ionizantes, CIEMAT, Madrid, Spain. e.garciatorano@ciemat.es
Roteta
M
Rodriguez Barquero L