The electron exchange of MeV hydrogen micro-cluster ions with solids
MeV氢微团簇离子与固体介质的电荷交换

The products of fast ions H+, H+2 and H+3 with the energy of 0.6 to 1.8MeV passing through carbon films were measured. The yields of neutral atom H and negative ion H- for H+ at energies of 0.6,0.9,1.2,1.6 and 1.8MeV were obtained, respectively. The fitted yield curves as function of velocity of projectile agreed with experimental results very well. The transmission of H+2, H+3 at energies 1.2MeV and 1.8MeV through carbon film were also measured. The fitted transmission curves as function of dwell time of H+2, H+3 in carbon film were also obtained. Theoretical analysis and discussion on the electron loss and capture possibility in solids were made.