Speaker
Description
The SCRIT team aims to measure the structure of 132Sn in the future. However, they have already encountered some challenges, such as the isobar problem. The long-term goal of the Rikkyo University team is to use a multiple reflection time-of-flight mass spectrometer (MRTOF-MS) to accurately separate isobars with relative mass ‘dm/m=1/39783’. MRTOF is an instrument that measures the mass from the time of flight of ions stored and cooled in an ion trap by repeatedly passing them back and forth between a pair of electrostatic mirror electrodes. We first used an existing theoretical framework to reproduce the motion in the electrostatic mirrors as a one-dimensional model. According to this theory, by adjusting electrode size and electric field strength, we can approximately predict when the temporal spread between charged particles is minimized in the absence of particle interactions. This prediction suggests that separation of 132Sn and 132Sb within 1 ms is possible. This would achieve spatial separation and allow the particles to be transported to the SCRIT system. The current work is focused on incorporating these findings and extending them to a three-dimensional model of the motion in the electrostatic mirror of the MRTOF-MS. This paper presents an overview of this research.
