Speaker
Description
TRIUMF's Ion Trap for Atomic and Nuclear science (TITAN) is a set of connected ion traps for rare isotope science. TITAN operates a Multi-Reflection Time-Of-Flight Mass Spectrometer (MR-TOF-MS) primarily for nuclear mass measurements and isomerically selective ion beam cleaning. TITAN's MR-TOF-MS has demonstrated excellent dynamic range ($\sim10^8$), high-precision ($\frac{\delta m}{m} \sim 10^{-7}$) and high-speed ($\sim 5$ ms) mass measurements, allowing for the study of very exotic isotopes. Additionally, TITAN has developed new techniques enabling the measurement of half-lives using the MR-TOF-MS. This has allowed for half-life measurements of isotopes between $\sim$5 ms and $\sim$5 min. Concurrent decay detection with mass measurements as been developed as a routine tool for supplementary identification of rare isotope species at TITAN. TITAN's MR-TOF-MS's unique ability to self-purify ion beam through mass selective re-trapping has made this a particularly powerful technique for science at TITAN. Applications of these new techniques for the study of nuclear structure and nucleosynthesis will also be discussed.
TITAN has recently used the MR-TOF-MS to make a set of mass measurements clarifying the nuclear structure near N=34 in potassium. Experimental ground state masses are compared to new state of the art ab-initio calculations. This is used to benchmark the accuracy of novel nuclear interaction models near the neutron dripline.