Characterization of a high resolution triple Gas Electron Multiplier (GEM) detector

N. Abgrall, J. Alcaraz, P. Bene, A. Blondel, A. Cervera, D. Ferrere, G. V. Jover, T. Lux, F. Masciocchi, F. Nova, E. Perrin, E. Radicioni, J. P. Richeux, A. Y. Rodriguez, F. Sanchez, R. Schroeter

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Abstract

The development of a Gas Electron Multiplier (GEM) readout as an option for the TPC of the near detector of the T2K neutrino experiment is presented. The low track density and the wide range in polar angle of particles produced by neutrino interactions drive the initial choice of relatively large squared pads (8 mm) for the performance study. The physics requirements [T2K ND280 Conceptual Design Report, http://dpnc.unige.ch:8080/nu/Members/nabgrall/t2kge/t2kge_doc/cdr.pdf] are a momentum resolution better than 10 % at 1 GeV/c and a 3σ dE/dx separation between muons and electrons. Micro-pattern Gas Detectors (MPGDs) such as GEMs or Micromegas show several beneficial features compared to the traditional Multi-Wire Proportional Chambers. They have been tested in the HARP TPC environment at CERN. Preliminary results form the GEM tests are reported here. © 2007 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)234-236
JournalNuclear Physics B - Proceedings Supplements
Volume172
DOIs
Publication statusPublished - 1 Oct 2007

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