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arXiv · 2205.12160

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

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

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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Yumi Aoki, David Attié, Ties Behnke, Alain Bellerive, Oleg Bezshyyko, Deb Bhattacharya Sankar, Purba Bhattacharya, Sudeb Bhattacharya, Yue Chang, Paul Colas, Gilles De Lentdecker, Klaus Dehmelt, Klaus Desch, Ralf Diener, Madhu Dixit, Ulrich Einhaus, Oleksiy Fedorchuk, Ivor Fleck, Keisuke Fujii, Takahiro Fusayasu, Serguei Ganjour, Philippe Gros, Peter Hayman, Katsumasa Ikematsu, Leif Jönsson, Jochen Kaminski, Yukihiro Kato, Claus Kleinwort, Peter Kluit Martin, Makoto Kobayashi, Uwe Krämer, Björn Lundberg, Michael Lupberger, Nayana Majumdar, Paul Malek, Takeshi Matsuda, Ulf Mjoernmark, Supratik Mukhopadhyay, Felix Müller, Astrid Münnich, Jurina Nakajima, Shinya Narita, Kentaro Negishi, Tomohisa Ogawa, Anders Oskarsson, Lennart Österman, Daniel Peterson, Huirong Qi, Marc Riallot, Christoph Rosemann, Stefan Roth, Peter Schade, Oliver Schaefer, Ronald Dean Settles, Amir Noori Shirazi, Aiko Shoji, Oxana Smirnova, Akira Sugiyama, Tohru Takahashi, Jan Timmermans, Maksym Titov, Dimitra Tsionou, Annika Vauth, Takashi Watanabe, Ulrich Werthenbach, Mengqing Wu, Yifan Yang, Ryo Yonamine, Zhiyang Yuan, Keita Yumino, Fan Zhang. 2022-05-24. Double-hit separation and dE/dx resolution of a time projection chamber with GEM readout. https://doi.org/10.1088/1748-0221%2F17%2F11%2Fp11027

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