Copper ion induced reactions on110-108-106Cd,109-107Ag and110Pd. new rhenium, osmium and iridium isotopes

Revision of the decay data of166?170Re, including new isomers167m,169mRe

“…The trend of the production ratio is similar to that of 94keV or ll0keV v-rays, both belonging to t'6vW [4]. We note that the excitation function of 5.26 MeV e-rays of Cabot et al [1][2][3][4][5][6][7][8] is rather wide, a fact which might aggravate their assignment. Our inspection of the presented e-ray spectra of Schrewe et al (Fig.…”

“…We can, however, not rule out that the 5.50 MeV e-rays belong to 16~Re, as it was reported in [10]. The earlier reported 5.26 MeV [8,9] and also the new 5.02 MeV e-rays display a similar excitation function as 167W and are consequently assigned to 167Re (Fig. 4).…”

“…The production ratio of 5.26 MeV e-rays and 363 keV v-rays, however, increases rapidly for higher irradiation energies. This excludes an assignment of the 5.26 MeV e-radiation to 168Re [8,9]. The trend of the production ratio is similar to that of 94keV or ll0keV v-rays, both belonging to t'6vW [4].…”

“…The first identification of 16SRe with 5.26 MeV c~-rays and 169Re with 5.05 MeV e-rays came from Cabot et al [8]. By means of the so far known e-ray energy systematic, Schrewe et al [9] claimed that these e-rays had a proper mass assignment, but belonged to the decays of two isomers, 168~Re and a69mRe.…”

164Ta, identification of a new isotope

“…Many new e-emitting isotopes of elements in the rare-earth and lead region have recently been discovered [1][2][3], mainly at high-energy heavy-ion facilities. The e-decay mode provides a unique signature for each nuclide, and the systematics of known e-decay energies facilitate the assignment of new activities.…”