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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Irradiation effects on the absorption edge of silica glass
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Irradiation effects on the absorption edge of silica glass

机译：辐照对石英玻璃吸收边缘的影响

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摘要

Vacuum ultraviolet absorption experiments were carried out on a variety of specimens of amorphous silica beta-irradiated at different doses from similar to 10(3) to 5 x 10(6) kGy. Changes in the width of the absorption (Urbach) edge were investigated. These changes strongly depend on the kind of silica considered: in particular the Urbach energy of silica of industrial manufacture increases in the irradiated samples, whereas in sol-gel silica it is poorly influenced by the irradiation. The fictive temperature of the different materials before and after irradiation was also monitored. The changes of the Urbach energy and of the fictive temperature are tentatively discussed considering the disorder degree induced by irradiation. (c) 2007 Elsevier B.V. All rights reserved.
机译：真空紫外吸收实验是在以10（3）至5 x 10（6）kGy的不同剂量对无定形二氧化硅β-射线辐照的各种样品上进行的。研究了吸收（Urbach）边缘的宽度变化。这些变化强烈地取决于所考虑的二氧化硅的种类：特别是工业制造的二氧化硅的Urbach能量在被辐照的样品中增加，而在溶胶-凝胶二氧化硅中，辐照的影响很小。还监测了辐照前后不同材料的虚拟温度。考虑到辐照引起的无序度，初步讨论了Urbach能量和虚拟温度的变化。 （c）2007 Elsevier B.V.保留所有权利。

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