Precision Mass Measurements at the Canadian Penning Trap using a Phase-Imaging Technique*

Precision mass measurements at Penning Trap facilities have traditionally used a time-of-flight (TOF) technique to measure the cyclotron frequency of ions and therefore determine their masses. At the Canadian Penning Trap (CPT), this technique is able to provide mass measurements to a precision of about $\delta $m/m $=$ 10$^{-8}$ with measurement times as low as 200ms. However, a new phase-imaging technique, which instead determines the cyclotron frequency by projecting the radial ion motion on a position-sensitive detector, is being implemented at the CPT. It provides at least a tenfold gain in resolving power while allowing for measurement times of less than 100ms, allowing measurements of more exotic neutron-rich nuclei from CARIBU with respect to the TOF technique. Details of its commissioning at the CPT will be discussed alongside new neutron-rich mass measurements.