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首页> 外文会议>IEEE Nuclear Science Symposium >An on-chip charge cluster reconstruction technique in the miniVIPIC pixel readout chip for X-ray counting and timing
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An on-chip charge cluster reconstruction technique in the miniVIPIC pixel readout chip for X-ray counting and timing

机译：用于X射线计数和定时的小型像素读数芯片中的片上电荷簇重建技术

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摘要

An on-chip algorithm for the allocation of a hit to a single pixel in the presence of charge sharing in a highly segmented pixel detector is presented. It has been developed to advance pixel detector technology for experiments with X-ray beams at a synchrotron facility. Its key elements are: activation of groups of pixels (neighborhood_active), comparisons of peak amplitudes within the active neighborhood, virtual pixels that recover composite signals, ability to create event driven strobes to control comparisons of fractional signals between neighboring pixels and finally latching of the results of these comparisons. The miniVIPIC prototype was designed in a 130 nm process, as a proof of feasibility. The chip contains an array of 32×32 100×100 μm~2 pixels. Analog and digital signals are exchanged between pixels, forming an extensive inter-pixel connection grid, whose routing to minimize parasistics, represented the major challenge. The design details of the chip are provided.
机译：呈现了在高度分段的像素检测器中存在充电共享存在中的用于单个像素的片上算法。已经开发出推进像素检测器技术，以便在同步rotron设施中用X射线束进行实验。其关键要素是：激活像素组（邻域_active），活动邻域内的峰值幅度的比较，恢复复合信号的虚拟像素，创建事件驱动的闪光灯，以控制相邻像素之间的分数信号的比较，并且最终锁存这些比较的结果。小型原型设计在130nm过程中，作为可行性证明。该芯片包含32×32 100×100μm〜2像素的阵列。模拟和数字信号在像素之间交换，形成一个广泛的像素间连接网格，其路由最小化寄生，代表了主要挑战。提供了芯片的设计细节。

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