P. Kuusiniemi

Fine structure in 192Po α-decay and shape coexistence in 188Pb

Abstract Excited J π =0 + states in 188 Pb populated in the α -decay of 192 Po have been identified through α -particle/conversion electron coincidences. α -particle energies and branching ratios have been measured, and hindrance factors deduced. The level scheme has been fitted using a configuration mixing calculation, providing estimates of the mixing matrix elements, mixing amplitudes and the energies of unperturbed and unobserved levels.

α decay studies of the nuclides U 218 and U 219

Very neutron deficient uranium isotopes were produced in fusion evaporation reactions using

Decay studies of Au 170 , 171 , Hg 171 – 173 , and Tl 176

^{40}mathrm{Ar}

-decay characteristics of neutron-deficient 190, 192Po nuclei and alpha branching ratios of 186, 188Pb isotopes

ions on

In-beam spectroscopy using the JYFL gas-filled magnetic recoil separator RITU

^{182}mathrm{W}

Identification of excited states in 167Os and 168Os: shape coexistence at extreme neutron deficiency

targets. The gas-filled recoil separator RITU was employed to collect the fusion products and to separate them from the scattered beam and other reaction products. The activities were implanted into a position sensitive silicon detector after passing through a gas-counter system. The isotopes were identified using spatial and time correlations between the implants and the decays. Two

Collective Rotational - Vibrational Transition in the Very Neutron-Deficient Nuclei

ensuremath{alpha}

^171, 172

-decaying states, with

Pt

{E}_{ensuremath{alpha}}=(8612ifmmodepmelsetextpmfi{}9)

FIRST OBSERVATION OF EXCITED STATES IN THE NEUTRON DEFICIENT NUCLEI 168PT AND 170PT

keV and