A neutron multiplicity technique for in-beam gamma -spectroscopy on neutron deficient nuclei

Presents an improved method for in-beam gamma -spectroscopic investigations of very neutron deficient nuclei using (HI, xnyp) reactions with targets and projectiles for which N approximately Z. In such a reaction the resulting compound nucleus predominantly evaporates charged particles which produces residual nuclei near the line of stability, while the cross sections for evaporation of neutrons leading to neutron deficient residual nuclei are small. Therefore an efficient neutron- gamma coincidence technique seem to be the adequate tool to separate these neutron channels from the competing charged particle channels. (4 refs).