EFFECTS OF 1.2 AND 0.30 MEV ELECTRONS ON THE OPTICAL TRANSMISSION PROPERTIES OF SEVERAL TRANSPARENT MATERIALS

摘要

A study of the effects of 1.2 and O.JO Mev electrons on the optical transmission properties of several transparent materials is reported herein. The materials studied were synthetic annealed sapphire, synthetic fused silica, fused quartz, and other silica glasses. The spectral range examined was 0.25 micron to 2.7 microns. Sapphire showed little sensitivity to radiation. Synthetic fused silica also showed little sensitivity except in ultraviolet transmission;however, the effects on other silica materials varied considerably. Discoloration appeared in most of the fused quartzes and other silica glasses after irradiation. Very little degradation occurred in the infrared transmission in any of the materials. It was found that heat and ultraviolet radiation have a bleaching effect on quartz damaged by radiation.