First results from the nuclear astrophysics AMS program at the NSL using the MANTIS system in gas-filled mode

The Magnet for Astrophysical Nucleosynthesis studies Through Isobar Separation (MANTIS) system is the new Accelerator Mass Spectrometry (AMS) set-up created during recent upgrades of the Browne–Buechner spectrograph at the University of Notre Dame. Commissioning measurements performed on the separation of 58Fe–58Ni isobars at 114 MeV out of the FN tandem accelerator have shown clear separation, opening the door for a number of future measurements in nuclear astrophysics. The separation of mass-58 isobars has made this system the first in the world to utilise a Browne–Buechner spectrograph in gas-filled mode for AMS measurements with a special focus on nuclear astrophysics.