Three-dimensional imaging for large LArTPCs
Three-dimensional imaging for large LArTPCs
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DOI：
10.1088/1748-0221/13/05/p05032
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发表时间：
2018-05-01
影响因子：
1.3
通讯作者：
Diwan, M.
中科院分区：
文献类型：
--
作者：
Qian, X.;Zhang, C.;Diwan, M.
高性能的事件重建对于当前和未来的大规模液氩时间投影室（LArTPC）实现其全部科学潜力至关重要。具有使用线平面的读出的LArTPC提供有限数量的2D投影。通常，在没有像素型读出的情况下，实现明确的3D事件重建是具有挑战性的。作为补救措施，我们提出了一种新的三维成像方法，线细胞，它结合了电荷和稀疏信息，除了通过简单和强大的数学的时间和几何形状。由此产生的电离密度的3D图像为进一步重建提供了一个很好的起点，并实现了LArTPC中3D跟踪量热法的真正功能。
High-performance event reconstruction is critical for current and future massive liquid argon time projection chambers (LArTPCs) to realize their full scientific potential. LArTPCs with readout using wire planes provide a limited number of 2D projections. In general, without a pixel-type readout it is challenging to achieve unambiguous 3D event reconstruction. As a remedy, we present a novel 3D imaging method, Wire-Cell, which incorporates the charge and sparsity information in addition to the time and geometry through simple and robust mathematics. The resulting 3D image of ionization density provides an excellent starting point for further reconstruction and enables the true power of 3D tracking calorimetry in LArTPCs.