Prof. Andrei Andreyev (University of the West of Scotland (UWS))
12/6/11, 4:20 PM
Beta-delayed (EC/b+, b-) fission is a rare nuclear decay process in which the beta-decaying parent nuclide populates excited states in its daughter, which may then fission. The talk will review the results of two ISOLDE experiments performed by our collaboration* in 2011, in which beta-delayed fission of lightest Tl, At and Fr isotopes were investigated. In particular, beta-delayed...
15. Investigating shape coexistence in the lead region with in-source laser spectroscopy at ISOLDE-RILIS
Thomas Elias Cocolios (CERN)
12/6/11, 4:50 PM
The competition between spherical and deformed nuclear shapes at low energy gives rise to shape coexistence in the region of the neutron-deficient lead isotopes with Z~82 and N~104 . In order to determine to which extend the ground-state of those isotopes is affected by this phenomenon, a large campaign of investigation of changes in the mean-square charge radii is on-going at ISOLDE. Using...
Mr Liam Gaffney (University of Liverpool (GB))
12/6/11, 5:10 PM
The notion that nuclei can assume reflection asymmetric shapes, arising from the octupole degree of freedom, has been supported by a considerable amount of theoretical and experimental evidence for some time. The strongest octupole correlations occur near the proton numbers Z=34, 56 and 88 and the neutron numbers N=34, 56, 88 and 134 where, for the heaviest nuclei, an octupole deformation can...
Kieran Flanagan (University of Manchester (GB))
12/6/11, 5:30 PM
The installation of the new Collinear Resonant Ionization Spectroscopy (CRIS) experimental beam line and lasers are now nearing completion. Commissioning tests that started towards the end of 2010 have continued throughout 2011 with beams from both ISOLDE and the newly installed off-line ion source. A new detection chamber that incorporates both ion and alpha detectors has been constructed,...
Kara Lynch (University of Manchester (GB))
12/6/11, 5:50 PM
The new Collinear Resonant Ionization Spectroscopy (CRIS) experiment at ISOLDE will use laser radiation to stepwise excite and ionize an atomic beam for the purpose of ultra-sensitive detection of rare isotopes, and hyperfine structure measurements. The technique also offers the ability to purify an ion beam that is heavily contaminated with radioactive isobars, including the ground state of...