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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 >Gamma-ray interactions with WO_3-doped sodium phosphate glasses
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Gamma-ray interactions with WO_3-doped sodium phosphate glasses

机译：与掺WO_3的磷酸钠玻璃的γ射线相互作用

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摘要

Tungsten-doped sodium phosphate glasses of various compositions and with varying WO_3 contents were prepared. UV-visible and infrared spectroscopic studies were measured before and after successive gamma irradiation. Raman and ESR studies were conducted for some selected glass samples. Experimental results indicate that tungsten ions occupy two possible valences W~(6+) and W~(5+) with different local sites depending on the host glass composition and concentration of tungsten ions. The changes in UV, visible, infrared and Raman spectral data are discussed in relation to the structural evolution caused by the change in glass composition and state of tungsten ions. Electron spin resonance studies confirm the presence of unpaired W~(5+) ions. Tungsten ions have been found to show a shielding behavior towards the effects of progressive gamma irradiation causing a retardation of the growth of the induced defects caused by irradiation.
机译：制备了各种成分的钨掺杂的磷酸钠玻璃，WO 3含量不同。在连续的伽马射线辐照之前和之后，测量了紫外可见和红外光谱研究。对一些选定的玻璃样品进行了拉曼和ESR研究。实验结果表明，取决于主体玻璃的组成和钨离子的浓度，钨离子占据两个可能的化合价W〜（6+）和W〜（5+）。讨论了紫外线，可见光，红外和拉曼光谱数据的变化，这些变化与玻璃成分和钨离子状态变化引起的结构演变有关。电子自旋共振研究证实存在不成对的W〜（5+）离子。已经发现钨离子显示出对渐进式γ辐射的影响的屏蔽行为，该行为导致了由辐射引起的诱导缺陷的生长的延迟。

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