Speaker
Description
This presentation will focus on the experiments carried out during 2017 with ISOLTRAP, the versatile mass spectrometer situated at ISOLDE/CERN. Highlights of this year's campaign were the precision mass measurements of neutron-rich krypton ($^{98,99}$Kr), argon ($^{48}$Ar) and cadmium ($^{127,129,131,132}$Cd) isotopes addressing, respectively, the onset of deformation in the $A \approx 100$ region and the quenching of the neutron shell gaps at $N = 28$ and $82$ far from stability. Over the course of the year ISOLTRAP performed several tests with ISOLDE beams, including the implementation of the Phase-Imaging Ion-Cyclotron-Resonance Mass Spectrometry to study the $^{88}$Rb - $^{88}$Sr $Q$-value. The value was determined to better then 200 eV precision. Furthermore, by using Multi-Reflection Time-Of-Flight Mass Spectrometry the ISOLTRAP team together with the RILIS and the ISOLDE target and ion-source groups performed a yield study of neutron-rich titanium and scandium. The outcome of these tests as well as preliminary results from the mass measurements will be discussed.
