Recent recoil ion momentum spectroscopy experiments at KSU

Recoil momentum spectroscopy is used to study collisions involving both fast and slow projectiles on He targets. Experiments have been performed on electron capture and loss from fast ions from the KSU LINAC and slow ions from the KSU CRYEBIS using a supersonic jets with a momentum resolution below 0.5 au. Using fast ions, the final states populated in electron capture from He by 10 MeV F8+ have been resolved with a Q-value resolution of 18 eV, sufficient to separate final channels in which the He+ ion is left excited from those in which He+ is left in its ground state. With slow ions, electron capture from He by slow bare Ne ions has been studied. A few recent results are discussed.