Hybrid pixel detectors are becoming a standard in modern fast X-ray imaging for material science, physics and medicine. However, charge sharing effect is the main limitation in increasing position resolution of these systems and also for using them for spectroscopy applications. In this paper we present novel algorithms which allow proper hit allocation even in the case of charge sharing and which can easily be implemented in an integrated circuit using submicron technology. In our simulation we take into account both the spread of the charge in the detector as well as the expected noise and mismatch in the readout electronics. The simulation was performed for the pixel size 80 µm × 80 µm, for the input referred noise ranged from 75 e− rms to 150 e− rms and the charge deposited in the detector from 1100 e− to 6600 e−, which are typical values for soft X-rays.
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机译：混合像素探测器正在成为材料科学，物理学和医学领域的现代快速X射线成像标准。然而，电荷共享效应是增加这些系统的位置分辨率以及将其用于光谱学应用的主要限制。在本文中，我们提出了新颖的算法，即使在电荷共享的情况下，该算法也可以进行适当的命中分配，并且可以轻松地在使用亚微米技术的集成电路中实现该算法。在我们的仿真中，我们既考虑了检测器中电荷的扩散，也考虑了读出电子设备中的预期噪声和失配。针对像素尺寸为80 µm×80 µm的仿真，输入参考噪声范围为75 e - rms至150 e - rms，并且电荷沉积在探测器从1100 e -到6600 e -，这是软X射线的典型值。
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