Double K-shell vacancies produced in near-symmetric collisions with Z∼53

During bombardment of targets (Z=47-57) with 80 MeV iodine beams double K-shell vacancies were detected by observing with solid-state detectors two coincident K X-rays. The indium Kalpha hypersatellite transition was found to be shifted by 500+or-30 eV from the Kalpha satellite line. The sharing of the double vacancies between the target and the projectile ions was observed and found to agree with current models. If the double vacancies are …