Studies of exotic nuclei at the Argonne-Tandem Linac Accelerator System

Wednesday 12 October 2016, 3.00PM

Speaker(s): Darek Seweryniak, Argonne National Laboratory


Studies of nuclei far from the line of stability is one of the focal points of research at the Argonne-Tandem Linac Accelerator System (ATLAS). In particular, the Gammasphere array of gamma-ray detectors coupled to the Fragment Mass Analyzer (FMA) has been used extensively to study, among others, proton-rich nuclei along the N=Z line, nuclei near the doubly magic 100Sn nucleus, proton emitters between Sn and Pb, or trans-fermium nuclei around 254No.  New initiatives promise to extend the experimental reach to even more exotic nuclei. The Argonne Gas-Filled Analyzer, which is expected to be completed early next year, will provide new opportunities for studies of very heavy nuclei. The gamma-ray tracking array GRETINA will be coupled to the FMA next year offering larger efficiency and superior Doppler correction resulting in much higher sensitivity. Recent highlights, such as spectroscopy of proton-rich Te isotopes and the discovery of K-isomers in the fissile 254Rf  nucleus, and plans for future research on exotic nuclei at ATLAS will be presented during the talk.

Location: P/T111