Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1875932 | Applied Radiation and Isotopes | 2015 | 7 Pages |
•The half-life of 61Cu in nickel and nickel-oxide was measured with high precision.•The measured half-lives are slightly different in different chemical environments.•The results are explained by the differences in electron density at the site of the nucleus.
The decay characteristics of 61Cu allow for a precise determination of its half-life. In order to search for a possible influence of the chemical environment on the decay rate, the half-life of 61Cu in nickel and nickel-oxide was measured with high precision. The results show a small difference in the half-life that can be explained by the differences in electron density at the site of the nucleus. A discussion about the validity of the adopted value of the total angular momentum of the 656 keV state in 61Ni is presented.