FINE STRUCTURES OF NEAR-INFRARED SPECTRA OF COLOR CENTERS IN SODIUM CHLORIDE CRYSTALS
氯化钠晶体色心近红外光谱精细结构

The zero-phonon lines of R2 and N1 centers and other narrow lines were observed in r-ray irradiated and He+-implanted sodium chloride crystals in the temperature range from 9 to 77K. The spectral properties and thermal stabilities of the Iines were measured systematically at different temperatures.