Ionization electron signal processing in single phase LArTPCs. Part II. Data/simulation comparison and performance in MicroBooNE
Ionization electron signal processing in single phase LArTPCs. Part II. Data/simulation comparison and performance in MicroBooNE
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DOI：
10.1088/1748-0221/13/07/p07007
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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.
单相液氩时间投影室（LArTPC）提供了大量的详细信息的形式，从粒子痕迹的细粒度漂移电离电荷。为了充分利用这些信息，必须通过强大的信号处理链从原始数字化波形中准确提取沉积的电荷。通过MicroBooNE探测器中与低温电子设备相关的超低噪声水平，从单相LArTPC中的感应线平面精确提取电离电荷在MicroBooNE数据上定性地展示了事件显示图像，并通过波形水平和跟踪水平度量进行了定量展示。改进性能的感应平面量热法证明通过协议提取的电离电荷测量跨不同的线平面的各种事件拓扑结构。除了全面的波形电平比较数据和模拟，低温电子响应的校准和各种MicroBooNE特定TPC问题的解决方案进行了讨论。这项工作提出了一个重要的改进LArTPC信号处理，重建的基础，因此在MicroBooNE物理分析。
The single-phase liquid argon time projection chamber (LArTPC) provides a large amount of detailed information in the form of fine-grained drifted ionization charge from particle traces. To fully utilize this information, the deposited charge must be accurately extracted from the raw digitized waveforms via a robust signal processing chain. Enabled by the ultra-low noise levels associated with cryogenic electronics in the MicroBooNE detector, the precise extraction of ionization charge from the induction wire planes in a single-phase LArTPC is qualitatively demonstrated on MicroBooNE data with event display images, and quantitatively demonstrated via waveform-level and track-level metrics. Improved performance of induction plane calorimetry is demonstrated through the agreement of extracted ionization charge measurements across different wire planes for various event topologies. In addition to the comprehensive waveform-level comparison of data and simulation, a calibration of the cryogenic electronics response is presented and solutions to various MicroBooNE-specific TPC issues are discussed. This work presents an important improvement in LArTPC signal processing, the foundation of reconstruction and therefore physics analyses in MicroBooNE.