带有宝石读数的时间投影室的双重分离和DE/DX分辨率

论文标题

带有宝石读数的时间投影室的双重分离和DE/DX分辨率

Double-hit separation and dE/dx resolution of a time projection chamber with GEM readout

论文作者

Aoki, Yumi, Attié, David, Behnke, Ties, Bellerive, Alain, Bezshyyko, Oleg, Sankar, Deb Bhattacharya, Bhattacharya, Purba, Bhattacharya, Sudeb, Chang, Yue, Colas, Paul, De Lentdecker, Gilles, Dehmelt, Klaus, Desch, Klaus, Diener, Ralf, Dixit, Madhu, Einhaus, Ulrich, Fedorchuk, Oleksiy, Fleck, Ivor, Fujii, Keisuke, Fusayasu, Takahiro, Ganjour, Serguei, Gros, Philippe, Hayman, Peter, Ikematsu, Katsumasa, Jönsson, Leif, Kaminski, Jochen, Kato, Yukihiro, Kleinwort, Claus, Martin, Peter Kluit, Kobayashi, Makoto, Krämer, Uwe, Lundberg, Björn, Lupberger, Michael, Majumdar, Nayana, Malek, Paul, Matsuda, Takeshi, Mjoernmark, Ulf, Mukhopadhyay, Supratik, Müller, Felix, Münnich, Astrid, Nakajima, Jurina, Narita, Shinya, Negishi, Kentaro, Ogawa, Tomohisa, Oskarsson, Anders, Österman, Lennart, Peterson, Daniel, Qi, Huirong, Riallot, Marc, Rosemann, Christoph, Roth, Stefan, Schade, Peter, Schaefer, Oliver, Settles, Ronald Dean, Shirazi, Amir Noori, Shoji, Aiko, Smirnova, Oxana, Sugiyama, Akira, Takahashi, Tohru, Timmermans, Jan, Titov, Maksym, Tsionou, Dimitra, Vauth, Annika, Watanabe, Takashi, Werthenbach, Ulrich, Wu, Mengqing, Yang, Yifan, Yonamine, Ryo, Yuan, Zhiyang, Yumino, Keita, Zhang, Fan

论文摘要

在计划中的国际线性撞机（ILC）中，研究了带有微图案气态检测器（MPGD）读数的时间投影室（TPC）作为国际大型探测器（ILD）概念的主要跟踪设备。在电子测试梁中构建并操作了配备了三重气体乘数（GEM）读数的原型TPC。将TPC放置在DESY II测试梁设施的1 T螺线管场中，该电池可提供高达6 GEV/c的电子束。确定并将读数模块的性能，尤其是空间分辨率分辨率，并与早期测试进行比较。提出了有关近距离轨道分离以及系统测量特定能量损失DE/DX的能力的首先结果。这是通过对读数粒度优化以改善DE/DX来改善粒子识别的模拟研究的补充。

A time projection chamber (TPC) with micropattern gaseous detector (MPGD) readout is investigated as main tracking device of the International Large Detector (ILD) concept at the planned International Linear Collider (ILC). A prototype TPC equipped with a triple gas electron multiplier (GEM) readout has been built and operated in an electron test beam. The TPC was placed in a 1 T solenoidal field at the DESY II Test Beam Facility, which provides an electron beam up to 6 GeV/c. The performance of the readout modules, in particular the spatial point resolution, is determined and compared to earlier tests. New studies are presented with first results on the separation of close-by tracks and the capability of the system to measure the specific energy loss dE/dx. This is complemented by a simulation study on the optimization of the readout granularity to improve particle identification by dE/dx.

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