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Positron-Annihilation-Spectroscopy Study of Proton-Induced Defects in Silicon

机译:正电子Ann没能谱研究硅中质子诱导的缺陷

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摘要

General approaches are considered to the structural characterization of defects in solids by positron-annihilation spectroscopy. Positron annihilation is studied experimentally on proton-irradiated silicon wafers made to different specifications, using the angular distribution of annihilation photons. A parabolic and a Gaussian component are identified in the distribution curves. They are associated with the annihilation of Wheeler states in the bulk and near Si-ion cores, respectively. The densities of radiation-induced defects are deduced from the experimental data.
机译:考虑了通过正电子an没光谱法对固体中的缺陷进行结构表征的通用方法。利用an灭光子的角度分布,对质子辐照不同规格的硅片进行了正电子an没的实验研究。在分布曲线中确定了抛物线分量和高斯分量。它们分别与块状和近硅离子核中的惠勒状态的an灭有关。从实验数据推导出辐射引起的缺陷的密度。

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