Pieter DOORNENBAL (RIKEN)
May 13(Thu) - May 13(Thu), 2021
13:00
Zoom
Abstract:
Since its first beam in 2006, the Radioactive Isotope Beam Factory (RIBF)
of the RIKEN Nishina Center provides the highest primary beam intensities
at 345 MeV/u. The capabilities of the facility has been demonstrated by the
discovery of almost 200 new isotopes using 238U and other primary beams
at the fragment separator BigRIPS.
In-beam gamma-ray spectroscopy using radioactive beams selected and identified
with BigRIPS mostly employ the ZeroDegree spectrometer for reaction product
identification and the DALI2 detector, an array based on NaI(Tl) scintillators,
for gamma-ray detection. Owing to the high secondary beam intensities as well
the high gamma-ray detection efficiency, experiments are performed at the RIBF
with the most exotic nuclei, presently not reachable anywhere else in the world.
Notable examples include the first spectroscopy of the neutron-rich
isotopes 54Ca and 78Ni.
An overview of the method will be presented together with key achievements
obtained within the last decade, manifesting its vast scientific potential.