3D track reconstruction of low-energy electrons in the MIGDAL low pressure optical time projection chamber
3D track reconstruction of low-energy electrons in the MIGDAL low pressure optical time projection chamber
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DOI：
10.1088/1748-0221/18/07/c07013
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发表时间：
2023-07
影响因子：
1.3
通讯作者：
Elizabeth Tilly;Magnus Handley;Migdal Collaboration
中科院分区：
文献类型：
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作者：
Elizabeth Tilly;Magnus Handley;Migdal Collaboration
我们展示了三维轨道重建的电子在低压（50托）光学TPC组成的两个玻璃GEM与ITO条读出CF 4和CF 4/Ar混合物。重建的轨道显示了各种事件的拓扑结构，包括55 Fe 5.9 keV X射线诱导的光电子的短轨道和伽马射线相互作用和β衰变的长轨道。事件识别和轨道脊检测的算法进行了讨论，以及从相机图像和ITO波形的目标的完整的3D重建的轨道的集成信息的多种方法。
We demonstrate three-dimensional track reconstruction of electrons in a low pressure (50 Torr) optical TPC consisting of two glass GEMs with an ITO strip readout in CF4 and CF4/Ar mixtures. The reconstructed tracks show a variety of event topologies, including short tracks from photoelectrons induced by 55Fe 5.9 keV X-rays and long tracks from gamma ray interactions and beta decays. Algorithms for event identification and track ridge detection are discussed as well as multiple methods for integrating information from the camera image and ITO waveforms with the goal of full 3D reconstruction of the track.