Effects of 80 KeV proton radiation on the optical properties and microstructure of type-GG17 glass as rubidium lamp envelope
✍ Scribed by Qingyan Wang; Hongbin Geng; Shiyu He; Dezhuang Yang; Zhonghua Zhang; Xiubo Qin; Zhuoxin Li
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 683 KB
- Volume
- 267
- Category
- Article
- ISSN
- 0168-583X
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✦ Synopsis
Effect of 80 KeV proton radiation with fluences of 10 14 -2 Â 10 16 protons/cm 2 on the optical properties and microstructure of type-GG17 borosilicate glass as a candidate material for rubidium spectra lamp envelope was investigated. The change in microstructure before and after proton radiation was evaluated by means of UV-vis-NIR spectroscopy, X-ray photoelectron spectroscopy (XPS) and positron annihilation lifetime spectrometer (PALS). The experimental results show that under radiation of 80 KeV some broken Si-O bonds were induced and thus the number of non-bridge oxygen (NBO) increased. These irradiationinduced defects caused the degeneration of optical property and loosened glass structure which accelerates rubidium diffusion into lamp envelop.