Wolf Dietrich Zeitz
(Helmholtz-Zentrum Berlin für Materialien und Energie GmbH)
20/11/2009, 11:00
Taking advantage of its unique supply of radioactive isotopes, groups of experimentalists apply nuclear techniques to investigate the properties of solids, surfaces, and soft matter at ISOLDE. The methods of choice are Moessbauer, perturbed angular correlation, and nuclear magnetic resonance spectroscopies. In addition to existing facilities, a set-up for the beta-NMR-technique has been...
P. Kessler
(Helmholz-Inst. f. Strahl.- u. Kernp-Univ. Bonn, Physikalisches I)
20/11/2009, 11:20
Earlier PAC measurements with 111In in GaN and AlN show a defect complex of the implanted In and a nitrogen vacancy (VN) which is stable up to high temperatures. This could give insights in the not well understood luminescence mechanism.
To gain more information about this complex we compared 111In(111Cd) with 111mCd(111Cd) measurements to check the possible influence of after effects that...
Rauno Julin
(Department of Physics, University of Jyväskylä)
20/11/2009, 11:40
Light- and heavy ion beams from the K=130 cyclotron are used to produce nuclei far from stability at the Accelerator Laboratory of the Department of Physics of the University of Jyväskylä (JYFL), Finland. Novel instruments at the target and focal-plane areas of a gas-filled recoil separator for in-beam tagging measurements are available for probing structures of very neutron deficient and very...
Beyhan Bastin
(Katholieke Universiteit Leuven-GANIL)
20/11/2009, 12:10
In the region around the Z=82 shell closure with neutron number around midshell between N=82 and N=126, shape coexistence occurs at low excitation energy. This phenomenon is well-established in the neutron-deficient polonium isotopes as evidenced by low-lying rotational like bands intruding in the low-energy structure.
Proton-pair excitations across the magic Z=82 along with the strong...
Maxim Seliverstov
(K.U. Leuven, Instituut voor Kern-en Stralingsfysica)
20/11/2009, 12:30
Shape coexistence at low excitation energy in nuclei is a phenomenon for which interest has been continuously growing on both the experimental and theoretical fronts. The region around the neutron mid-shell N = 104 and closed proton shell Z = 82 is especially prolific. The platinum isotope (Z = 78) ground states show a transition from the weakly deformed oblate shape at A < 176 and A > 188 to...
