Irradiation induced luminescence of silica glasses doped with hydrogen

Change in light transmission properties in silica glasses under irradiation depends largely on minor impurity elements such as hydroxyl and fluorine. Silica glasses are expected to be used as medium of light transmission, as well as radiation sensor because luminescence of optical wavelength arises by ionizing radiations. In this study, in order to investigate effects of hydroxyl and hydrogen in the silica glass on ion-beam induced luminescence, the luminescence dependencies of temperature, irradiation dose and electron excitation density are measured. Hydrogen behavior presumably deeply related to the luminescence property is also investigated quantitatively. Based on the studies, the possibility of controlling luminescence property is explored. It is concluded that ion-beam induced luminescence in silica glasses doped with hydrogen can be enough controlled. (A.H.)