Evaluations and origins of the recommended decay data

This annex contains the recommended decay data derived by means of the agreed evaluation procedures and methodology. All relevant data have been evaluated to produce values recommended for detector efficiency calibration and other applications. Half-lives, X ray emission probabilities and γ ray emission probabilities are listed for each radionuclide considered by the CRP. Source references are also given for these evaluations. The data uncertainties are defined as standard deviations corresponding to the 1 σ confidence level. These uncertainties are expressed in terms of the last digits of the recommended value