26-30 June 2011
Centro Culturale Altinate, Padova, Italy
Europe/Rome timezone

Gamma-ray spectroscopy experiments at RIKEN

28 Jun 2011, 15:25
Sala Polivalente (Centro Culturale Altinate, Padova, Italy)

Sala Polivalente

Centro Culturale Altinate, Padova, Italy

Via Altinate 71 Padova Italy


Pieter Doornenbal (RIKEN)


In the Radioactive Isotope Beam Factory (RIBF) stable primary beams of energies up to 345 MeV/nucleon are used to produce radioactive isotope beams via in-flight separation with the BigRIPS fragment separator. For gamma-ray spectroscopy experiments these radioactive beams are either incident on a secondary target for in-beam experiments or stopped to measure isomeric or beta-delayed gamma-emission. In my presentation I will report on the results obtained from the first gamma-ray spectroscopy experiments performed at the RIBF. For stopped-beam experiments neutron-rich nuclei in the mass region A=110 were investigated after fission of a 238U primary beam. In this mass region, shape transitions around the Zr isotopes were studied. The first in-beam gamma-ray experiments targeted the "Island of Inversion", a region in which the standard ordering of shells is disturbed by neutron intruder configuration across the N=20 shell gap. Besides showing the results from these first experiments an outlook on future gamma-ray spectroscopy campaigns at the RIBF will be given.

Primary author

Pieter Doornenbal (RIKEN)

Presentation Materials