Conveners
Physics 2
- Peter Butler (Liverpool)
Magda Zielinska
(CEA Saclay)
13/02/2007, 11:30
A low-energy Coulomb excitation experiment on neutron-rich 44Ar has been performed
at the SPIRAL facility of GANIL. The primary question addressed by the experiment was
the possible weakening of the N=28 shell closure in neutron-rich nuclei and, closely
connected to that, the development of deformation and shape coexistence in this
region of the nuclear chart. A beam of 44Ar was produced...
Dr
Sunniva Siem
(University of Oslo)
13/02/2007, 11:50
The Oslo group has developed a technique to measure with high precission the level density from
the ground state up to the neutron binding energy. The method provides simultaneously the level density
and gamma-ray strength function in one and the same experiment. After establishing the level density
as a function of excitation energy, the entropy is known and we can explore various...
Dr
Ulrich Wahl
(Instituto Tecnológico e Nuclear ITN)
13/02/2007, 12:10
The group V impurities As and Sb are of interest as possible acceptor dopants in the
II-VI semiconductor ZnO and as isoelectronic impurities in the III-V semiconductor
GaN. Since the chemical valence of As and Sb is closer to O or N than to Zn or Ga, it
is in in both cases often assumed that As and Sb substitute for the anions of the
compound semiconductor, i.e. for O in ZnO and for N in...
Ana Claudia Lourenco Santana Marques
(Centro de Física Nuclear da Universidade de Lisboa CFNUL)
13/02/2007, 12:30
We report on the lattice site location of Fe in SrTiO3 single crystals using the
emission channeling technique. Following the room temperature 60 keV
implantation of the precursor isotope 59Mn(t1/2=0.71s) to a dose of 2E13
at./cm2, the angular distribution of β- particles emitted from 59Fe(t1/2=44.6d)
was recorded around the <100>, <111>, <211> and <110> axis in the as-
implanted...