THE IONOLUMINESCENCE OF Zn2SiO4:Mn UNDER NEGATIVE AND MOLECULAR ION BOMBARDMENT

A Zn2SiO4:Mn phosphor sample was bombarded by H+, H−, O−, O+, O2+, and O2− ions. In the energy range studied (10 < E < 90 keV), the ionoluminescence intensity was independent of the charge on the ion at the moment of impact. When the phosphor was bombarded by a molecular ion (H2, N2, O2, or CO2), the light output was less than the sum of the light outputs of the atomic constituents of the molecule at the same velocity.