Nuclear Structure Group

News

  • We have established five-years ERASMUS programme with the Heavi-Ion Laboratory @ University of Warsaw, Warsaw, Poland.
  • This year the course on Nuclear Astrophysics for bachelor students will be helt during the summer semester of 2010.
  • Bachelor and MSc's thesis subjects:
    • Fast-timing measurements with LaBr3(Ce) detectors.
    • Isomeric decays in neutron-rich nuclei.
    • Octupole excitations in A~100 region

About Us

Our group studies the excited states of nuclei in A~100 and A~190 mass regions produced via heavy ion induced fission and in fusion/evaporation reactions. In spite of the fact that the produced nuclei are from different regions they show a similar collective properties: the nuclei in both regions exhibit variety of shapes and even shapes coexistence can be expected; several nuclei may be soft against gamma-deformation; addition or subtraction of few nucleons may increase significantly the nuclear deformation.

The mechanism of high-spin states population is the following: accelerated heavy ions bombard the target nuclei. Both nuclei may fusion and form a highly excited compound nucleus with high angular momentum. The nucleus evaporates few light particles to cool down but still have high angular momentum. There are two de-exciting competing mechanisms: emission of cascade of gamma rays or fission into two fragments with symmetric masses. Each of these fragments is excited, which to cool down they emit several neutrons and a cascade of gamma-rays. The prompt gamma-rays are detected by Multidetector Gamma-Ray Arrays.

Research Topics

  • Evolution of collectivity in even-even transitional nuclei with the particle number more...
  • Evolution of collectivity in even-even nuclei with angular momentum more...
  • Gamma-spectroscopy of super-heavy nuclei
  • Fission fragments gamma-spectroscopy
  • Life-time measurements: The Recoil Anisotropy method
  • Electron and electron-gamma spectroscopy