Revision of the 109Cd decay data

Combining measurement with the use of a Si(Li) detector and a 4π NaI(Tl) detector a new value of ωsub(K)(Ag) equal to 0.84+-0.02 was determined. From the measured ratio of the KX-ray and conversion electron emission rates the relative K-capture probability Psub(K)=0.77+-0.015 was calcualted. Through analysis of data reported in literature and taking into account the new value of Psub(K) and ωsub(K) and the results of the international comparison of absolute activity measurements of 109Cd, the following decay data were chosen for the calculation of yield: ωsub(K)=0.836+-0.007; αsub(T)=26.4+-0.3; αsub(K)=11.4+-0.3; Psub(K)=0.78+-0.015. The number of gamma photons per disintegration (gamma-yield) was then determined equal to 0.0365+-0.0004; the KX-yield equal to 0.997+-0.008; the conversion electrons yield equal to 0.9635+-0.0005 and the KX/γ ratio equal to 27.3+-0.6. (author)