玻璃中过渡金属离子对γ-射线辐照产生色心的影响

Effect of Transition-metal Ions in Glass on Colour-center under γ-ray irradiation

辐照着色玻璃可用作装饰玻璃、眼镜玻璃及光学元件,而耐辐照玻璃可用于原子反应堆,热室的观察窗以及适应于辐射场中的光学仪器等。研究在射线作用下玻璃的变色情况对于发展现代化的光学仪器,推广该技术的应用具有重要意义。本文采用分光光度法研究了一些含部分过渡金属离子的玻璃经γ-射线辐照的变色情况并对变色的机理作了初步探讨。

Influence of transition-metal ions, such as Cr, Mn, Fe, Cu ions etc, in glass on colour-center under γ-ray irradiation and its mechanism was studied by speotrophotometry. The results show that under γ-ray irradiation Cu+ and Cu++ capture electron and hole. The exist of transition-metal iong restrains the formation of either positive hole or electron colour centre.