The New MRTOF mass spectrograph following the ZeroDegree spectrometer at RIKEN's RIBF facility

Rosenbusch, M.*; Ito, Yuta; 24 of others*

Nuclear Instruments and Methods in Physics Research A, 1047, p.167824_1 - 167824_12, 2023/02

https://doi.org/10.1016/j.nima.2022.167824

A new MRTOF mass spectrograph was assembled following the ZeroDegree spectrometer at RIKEN RIBF. By using a pulsed-drift-tube technique to modify the ions' kinetic energy in a wide range, we directly characterized the dispersion function of the system for optimizing the voltages applied to the electrostatic mirrors. This enabled us to achieve a mass resolving power of 10 within a total time-of-flight of only 12.5 ms, making the spectrometer capable of studying short-lived nuclei possessing low-lying isomers.