J. Kurpeta

Trap-assisted separation of nuclear states for gamma-ray spectroscopy: the example of 100Nb

Low-lying levels in 100Mo are known to be populated by beta decay from both the ground and isomeric states in 100Nb. The small energy difference (~3 ppm) between the two parent states and the similarity of their half-lives make it difficult to distinguish experimentally between the two decay paths. A new technique for separating different states of nuclei has recently been developed in a series of experiments at the IGISOL facility, using the JYFLTRAP installation, at the University of Jyvaskyla where mass resolution ~2 ppm was achieved in mass measurements and in the production of 133mXe. This paper reports on the extension of this technique to allow the separate study of the gamma-ray decay of levels populated by the different parent states.

Production and identification of new, neutron-rich nuclei in the [sup 208]Pb region

The recently developed methods allowing the experimental studies on new neutron-rich nuclei beyond doubly-magic {sup 208}Pb are briefly described. An identification of new neutron-rich isotopes {sup 215}Pb and {sup 217}Bi, and new decay properties of {sup 216}Bi studied by means of a pulsed release element selective technique at PS Booster-ISOLDE are reported.

Decay study of {sup 114}Tc with a Penning trap

The level structure of

New isomer and decay half-life of {sup 115}Ru

^{114}\mathrm{Ru}

Excited states in {sup 115}Pd populated in the {beta}{sup -} decay of {sup 115}Rh

has been investigated via the

Decays of very neutron-rich fission products 113Ru and 113Rh

\ensuremath{\beta}

Identification of an {alpha}-decaying (9{sup -}) isomer in {sup 216}Fr

decay of very neutron-rich

First observation of the β-decay of neutron-rich 215Pb and 218Bi by the pulsed-release technique and resonant laser ionisation

^{114}\mathrm{Tc}

Nuclear spins, magnetic moments and α-decay spectroscopy of long-lived isomeric states in 185 Pb

by means of Penning-trap-assisted

Beta decay of Co-66, Co-68, and Co-70

\ensuremath{\gamma}