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arXiv 2012.08727physics.ins-det
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液基探测器研究中动态几何信息的共享方法

A method for sharing dynamic geometry information in studies on liquid-based detectors

Shu Zhang, Jing-Shu Li, Yang-Jie Su, Yu-Mei Zhang, Zi-Yuan Li, Zheng-Yun You

摘要:

液基探测器广泛应用于粒子和核物理实验中。由于Geant 4等探测器模拟中几何结构的固定方式,通常很难描述探测器中液体的非均匀性。提出了一种基于GDML和探测器网格化描述的方法,实现了计算流体动力学(CFD)仿真软件和探测器仿真软件之间探测器几何信息的共享。该方法使得研究液体流动和非均匀性对液基探测器的一些关键性能(如事件顶点重建分辨率)的影响成为可能。这也将有助于探测器的设计和性能优化。

英文摘要:

The liquid-based detectors are widely used in particle and nuclear physics experiments. Due to the fixed way of constructing geometry in detector simulation such as Geant4, it is usually difficult to describe the non-uniformity of liquid in detectors. We propose a method based on GDML and tessellated detector description to share the detector geometry information between Computational Fluid Dynamics (CFD) simulation software and detector simulation software. The method makes it possible to study the impact of liquid flow and non-uniformity on some key performance of the liquid-based detectors, such as event vertex reconstruction resolution. It will also be helpful in detector design and performance optimization.

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