Ionization electron signal processing in single phase LArTPCs. Part I. Algorithm Description and quantitative evaluation with MicroBooNE simulation
Ionization electron signal processing in single phase LArTPCs. Part I. Algorithm Description and quantitative evaluation with MicroBooNE simulation
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DOI：
10.1088/1748-0221/13/07/p07006
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发表时间：
2018-07-01
影响因子：
1.3
通讯作者：
Zhang, C.
中科院分区：
文献类型：
--
作者：
Adams, C.;An, R.;Zhang, C.
我们描述的概念和程序中开发的MicroBooNE实验，单相液氩时间投影室（LArTPC）的漂移电荷提取。该技术将原始数字化TPC波形转换为在给定时间通过线平面的电离电子的数量。从感应和收集阳极线平面的电离电子的数量的鲁棒恢复将增强3D重建，并且对于层析重建算法特别重要。描述了整个过程的许多构建块。通过详细的TPC检测器模拟将提取的电荷与真实电荷进行比较来定量评估信号处理的性能，该模拟考虑了单个导线区域内和跨多个导线的位置相关的感应电流。还讨论了电荷提取过程的性能进一步改进的一些领域。
We describe the concept and procedure of drifted-charge extraction developed in the MicroBooNE experiment, a single-phase liquid argon time projection chamber (LArTPC). This technique converts the raw digitized TPC waveform to the number of ionization electrons passing through a wire plane at a given time. A robust recovery of the number of ionization electrons from both induction and collection anode wire planes will augment the 3D reconstruction, and is particularly important for tomographic reconstruction algorithms. A number of building blocks of the overall procedure are described. The performance of the signal processing is quantitatively evaluated by comparing extracted charge with the true charge through a detailed TPC detector simulation taking into account position-dependent induced current inside a single wire region and across multiple wires. Some areas for further improvement of the performance of the charge extraction procedure are also discussed.