167 research outputs found
The SPEDE spectrometer
The electron spectrometer, SPEDE, has been developed and will be employed in conjunction with the Miniball spectrometer at the HIE-ISOLDE facility, CERN. SPEDE allows for direct measurement of internal conversion electrons emitted in-flight, without employing magnetic fields to transport or momentum filter the electrons. Together with the Miniball spectrometer, it enables simultaneous observation of {\gamma} rays and conversion electrons in Coulomb-excitation experiments using radioactive ion beams
Quasiparticle alignments and alpha-decay fine structure of Pt-175
Excited states and decay properties of 175 Pt have been investigated using the 92 Mo ( 86 Sr , 2 p n ) fusion-evaporation reaction. The JUROGAM I Îł -ray spectrometer and the GREAT spectrometer were used in conjunction with the gas-filled recoil separator RITU for the measurement of the radiation at the target and focal plane positions, respectively. Two new band structures, assigned to be based on the I Ï = ( 7 / 2 â ) ground state in 175 Pt, have been established and the known yrast band has been extended up to I Ï = ( 49 / 2 + ) . Rotational properties of the excited states in 175 Pt have been investigated within the cranked shell-model formalism. The low-frequency changes in the alignments of the positive- and negative-parity bands are interpreted as a sign of proton-pair excitations in the rotating core. Furthermore, the α -decay measurements reveal a candidate for a fourth α -decay branch in 175 Pt, feeding a non-yrast state in 171 Os
Nuclear structure of Au-181 studied via beta(+)/EC decay of Hg-181 at ISOLDE
The /EC decay of mass separated samples of Hg was studied employing the TATRA spectrometer at the ISOLDE facility at CERN. The decay scheme was constructed for the first time. A Broad Energy Germanium detector was used to achieve this by combination of high-gain -ray singles spectroscopy and â coincidences. The systematics of excited states associated with the 1 proton-hole configuration in odd-Au isotopes was extended
The observation of vibrating pear-shapes in radon nuclei (vol 10, 2473, 2019)
An amendment to this paper has been published and can be accessed via a link at the top of the paper
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