Speaker
Description
Rare isotopes in nature are offering a wealth of new information that markedly deviate from the traditional structural properties predicted by models based on observations from stable nuclei. These isotopes play key roles in the element synthesis in the universe and bring access to unravel the state of matter in the cosmic neutron-rich environments such as neutron stars.
The Isotope Separator and Accelerator (ISAC) facility at TRIUMF is an ISOL type radioactive beam facility with maximum beam power of 50 kW on target that open access to study the short-lived exotic nuclei. The low-energy ISOL beams allows high precision measurement of ground state properties. To measure nuclear reactions the isotopes are re-accelerated using the superconducting linear accelerator to energies E/A ~ 3-12 MeV.
Some examples of mass measurements of neutron-rich nuclei using the TITAN MR-TOF will be presented to discuss their implications on nuclear structure evolution and on the r-process nucleosynthesis. The re-accelerated ISOL beams bring suitable conditions for measuring reactions of importance in nuclear astrophysics. Measurement of reaction cross section for the weak r-process using EMMA and TIGRESS will be shown. The presentation will show the scope of the IRIS facility with a unique thin windowless solid H2/D2 target for studying reactions of astrophysical importance and for investigating novel features of nuclear structure of exotic nuclei.