Luminescence measurements of silica glass - a contribution to the order and structure of X-ray amorphous SiO2

Samples of silica glass were X-irradiated with 200 Gy and the induced luminescence was measured. Luminescence could not be induced in silica glass produced from SiCl4 or organic silicon compounds. Silica glass annealed at temperatures above 1100 0C or prepared from pure quartz was found to be luminescent. Intensity and half-life of the luminescence were dependent on the degree of inhomogeneity and on the preparation of the glass samples. Quartz crystal showed the maximal luminescence with regard to the half-life