Decay of 97Zr and its daughter 97Nb

Abstract

The energies of the gamma lines following the β decay of the 17 h 97Zr isotope and its 72 min daughter were precisely measured. With these results, the level scheme of 97Nb, as derived by Siivola and Graeffe, was essentially confirmed except for minor changes and more refined energies. The level scheme of 97Mo as derived by Graeffe and Siivola was modified and a few level spin and parity assignments were tentatively made.