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首页> 外文期刊>Journal of Crystal Growth >Zinc segregation in HPB grown nuclear detector grade Cd_(1-x)Zn_xTe
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Zinc segregation in HPB grown nuclear detector grade Cd_(1-x)Zn_xTe

机译：HPB生长核探测器Cd_（1-x）Zn_xTe级中的锌偏析

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摘要

CZT ingots have been grown by the high pressure Bridgman technique and their zinc concentration has been measured by X-ray fluorescence and PIXE on samples cut at differetn growth poistions. The zinc concentration map has been traced fro several wafers showing strong discrepancies along the explored area. The segregation coefficient has been calculated from the experimental data taking a directional freezing model. A very good fitting with experimental values is obtined especially for the PIXE results. Some detectors have been manufactured from the wafers and tested in nuclear detection. It is shown that pair creation energy is modified and that saturation curve is modified from the head to the tail of the ingot.
机译：CZT锭是通过高压Bridgman技术生长的，并且通过X射线荧光和PIXE在不同的生长部位切割的样品上测量了其锌浓度。锌浓度图已经在几个晶片上追踪到，显示出沿勘探区域的强烈差异。偏析系数是根据定向冻结模型的实验数据计算得出的。特别是对于PIXE结果，提供了非常好的实验值拟合。一些探测器是用晶圆制造的，并在核探测中进行了测试。结果表明，成对能量被改变，饱和度曲线从晶锭的头部到尾部被改变。

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