Influence of a metallic matrix on the probability of the transition of 910 eV in 154Eu nuclei

Аннотация

The transition of 910 eV in the ¹⁵⁴Eu nucleus is presented as a new object of study of the influence of a matrix on the probability of low-energy nuclear transitions. The variation of this transition probability causes variations in the γ-quantum yields of ^154mEu decay which are easily detected from a matrix with ^154mEu nuclei. Using this approach, the probability of the transition of 910 eV occurring for ^154mEu nuclei in a Sm–Sn alloy is found to be 33% lower than for ^154mEu nuclei in Sm chloride or metallic Sm.