Tests method for space-ionizing-radiation-induced coloration in glasses
-
摘要: 针对空间电离辐照的复杂性,在玻璃空间电离辐照着色损伤动力学研究基础上,讨论了玻璃空间电离辐照着色损伤考核面临的问题,提出了一种动力学的考核方法。基于该方法,以K9-HL玻璃为研究对象,研究了特定轨道(近地点350 km,远地点425 km,轨道倾角51.6)下玻璃空间电离辐照着色损伤过程,分析了特定轨道下玻璃空间电离辐照着色损伤特征,结果显示:K9-HL玻璃特征轨道在轨20年后蓝光区域透过率降低严重导致其必然呈现淡黄色,严重影响了其作为高性能无色光学材料的使用。此外,对玻璃空间电离辐照着色损伤60Co-射线辐照考核方法的适用性进行了分析讨论,结果表明,采用60Co-射线作为辐照源分析玻璃空间电离辐照着色损伤可能引入较大误差,造成该现象的原因是60Co-射线在玻璃中的作用深度极大及考核方法未考虑色心弛豫消失。Abstract: According to complexity of space ionizing radiation, from study on kinetic of space-ionizing-radiation-induced coloration in glasses, this paper discussed problems faced in performance tests of space-ionizing-radiation-induced coloration in glasses, and a method of performance tests based on kinetic was proposed. Using this method, space radiation induced coloration in the glass serving in a given orbital (perigee 350 km, apogee 425 km, orbital inclination 51.6) were analyzed. It can be seen from the results, after 20 years in the orbital, the blue region optical transmission of the K9-HL glass decreases severely, leading to the glass's turning light yellow, and it certainly will do harm to the glass's usage as a fine optical material. Additionally, the applicability of performance tests of space-ionizing-radiation-induced coloration in glasses using 60Co- ray was discussed. It can be seen from the results, it gives to a large error using 60Co- ray as radiation resource to test space-ionizing-radiation-induced coloration in glasses, and the phenomenon is due to it that 60Co- ray has a large penetration depth in the glass and the relaxation process of color centers is not considered.
-
Key words:
- glass /
- space ionizing radiation /
- kinetic /
- color center
点击查看大图
计量
- 文章访问数: 1201
- HTML全文浏览量: 212
- PDF下载量: 436
- 被引次数: 0