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Threshold restoration effects in gamma-irradiated chalcogenide glasses

机译:γ射线照射的硫族化物玻璃的阈值恢复效果

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摘要

The influence of annealing temperature T-a on the optical absorption edge in the previously gamma-irradiated glasses of Ge-Sb(As)-S ternaries of pseudobinary 'stoichiometric' Sb(AS)(2)S-3-GeS2 and non-stoichiometric Sb(AS)(2)S-3-Ge2S3 cut-sections is studied. It is established that the post-irradiation thermally produced changes of the optical absorption edge differ in various T-a regions. Threshold restoration effects are found beginning from some intermediate onset temperature T-on for all investigated glasses. Compositional features of the apparent activation energies determined in corresponding T-a regions are analyzed. A possible mechanism for the observed effects is discussed. (c) 2005 Elsevier B.V. All rights reserved.
机译:退火温度Ta对伪二元化学计量Sb(AS)(2)S-3-GeS2和非化学计量Sb的Ge-Sb(As)-S三元先前伽马射线辐照的玻璃中的光吸收边缘的影响研究了(AS)(2)S-3-Ge2S3截面。可以确定的是,辐射后热产生的光吸收边缘的变化在各个T-a区域中是不同的。对于所有被调查的眼镜,从某个中间开始温度T-on开始发现阈值恢复效果。分析在相应的T-a区域中确定的表观活化能的组成特征。讨论了观察到的效果的可能机制。 (c)2005 Elsevier B.V.保留所有权利。

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