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首页> 外文期刊>Nuclear Instruments & Methods in Physics Research. B, Beam Interactions with Materials and Atoms >Thermal annealing of disorder in Pb-ion irradiated SrTiO_3
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Thermal annealing of disorder in Pb-ion irradiated SrTiO_3

机译：铅离子辐照SrTiO_3的无序热退火

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摘要

Attention was paid to thermal annealing of defects in the SrTiO_3 lattice preliminary irradiated by Pb~(2+) ions which were used to simulate the recoil-nuclei during α-decay events in actinide waste forms. Two different types of defect depending upon Pb~(2+) irradiation fluence and annealing temperature were characterized with their activation energy and a prefactor related to the fraction recovered per second. Such thermal annealing data are necessary to predict the matrix behaviour under the storage conditions. Additional informations were obtained on the defect structure using Rutherford backscattering spectrometry in channeling condition. The measurement of the de-channeling yield along different axes and planes in the crystal has permitted to analyse partially the isolated defect structure.
机译：Pb〜（2+）离子对SrTiO_3晶格中的缺陷进行了初步的热退火处理，该缺陷用于模拟which系元素废物中α衰变过程中的反冲核。分别根据Pb〜（2+）辐照量和退火温度对两种不同类型的缺陷进行了表征，分别以其活化能和与每秒回收分数相关的因子进行表征。此类热退火数据对于预测存储条件下的基体行为必不可少。在通道条件下，使用卢瑟福背散射光谱法获得了有关缺陷结构的其他信息。沿着晶体中不同轴和平面的去沟道产量的测量允许部分分析隔离的缺陷结构。

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