摘要
X-ray emission analysis provides us an effective method to investigate the inner-shell process of ion-atom collisions.Near the Bohr velocity, the projectile, having enough kinetic energy, interacts with the target atoms at a closedistance below the surface. Except for neutralization, it may be ionized. Not only the inner-shell ionization, butalso the outer-shell may be multiple ionized. This results in the X-ray energy shift and the change of fluorescenceyield[1??3]. Here, we would like to present the evolvement of the Ar11+ ions in collisions near the Bohr velocity.
