Speaker
Description
High-flux reactors such as the one at the Institut Laue-Langevin (ILL, Grenoble) provide intense neutron sources for many different physics purposes. In particular, thermal neutron-induced reactions can be used to probe different phenomena in an approach to study the structure of nuclei. Neutron capture reactions on (rare) stable or radioactive targets populate low-spin states below the neutron separation energy. With thermal neutron induced fission on actinides, neutron-rich nuclei are produced at moderately high spin. Those fission products are studied at ILL in the high-resolution gamma-ray spectroscopy setup FIPPS (Fission Product Prompt gamma-ray Spectrometer). This facility provides access to observables which cannot yet be measured at any other currently existing facility and are needed to validate theoretical models or investigate phenomena as nuclear shape coexistence.
After a general introduction about the nuclear physics activities at the Institut Laue-Langevin, recently published and to-be-published results will be outlined. In particular, the systematics of shape isomers in the Ni isotopic chain will be discussed, in comparison with Montecarlo shell model calculations. New experimental data on transition probabilities at medium-high spin in neutron-rich nuclei produced in the fission process will be also shown and discussed on the basis of very new and preliminary theoretical calculations.
Future perspectives, in particular for neutron-induced fission and neutron-capture reactions on radioactive targets, will be outlined.
| Contribution category | Experiment |
|---|---|
| Presenter status | Faculty/Staff |