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arXiv physics/0310137physics.ins-det
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基于二维插值电阻读出结构的虚像素探测器图像重建研究

On image reconstruction with the two-dimensional interpolating resistive readout structure of the Virtual-Pixel detector

H. Wagner, A. Orthen, H. J. Besch, S. Martoiu, R. H. Menk, A. H. Walenta, U. Werthenbach

摘要:

与纯像素器件相比,虚拟像素检测器(ViP检测器)的二维插值读出概念伴随着电子通道的巨大减少。然而,读出结构的特殊概念要求适当的位置重建方法。理论上的考虑,反映了正确的位置重建和空间分辨率的重点线性算法的选择和组合。随后的二维坐标变换进一步改善了系统的图像响应。测量的图像显示了模拟的理论预测可以在多大程度上得到验证,以及它们可以在多大程度上用于改善位置重建。

英文摘要:

The two-dimensional interpolating readout concept of the Virtual-Pixel detector (ViP detector) goes along with an enormous reduction of electronic channels compared to pure pixel devices. However, the special concept of the readout structure demands for adequate position reconstruction methods. Theoretical considerations reflecting the choice and the combination of linear algorithms with emphasis on correct position reconstruction and spatial resolution are presented. A subsequent two-dimensional coordinate transformation further improves the image response of the system. Measured images show how far the theoretical predictions of the simulations can be verified and to what extent they can be used to improve the position reconstruction.

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