New developments in Thin Gap Chambers (TGC) detectors to provide fast trigger and high precision muon tracking under sLHC conditions are presented. The modified detectors are shown to stand a high total irradiation dose equivalent to 6 Coulomb/cm of wire, without showing any deterioration in their performance. Two large (1.2 x 0.8 m^2) prototypes containing four gaps, each gap providing pad, strips and wires readout, with a total thickness of 50 mm, have been constructed. Their local spatial resolution has been measured in a 100 GeV/c muon test beam at CERN. At perpendicular incidence angle, single gap position resolution better than 60 microns has been obtained. For incidence angle of 20 degrees resolution of less than 100 micron was achieved. TGC prototypes were also tested under a flux of 10^5 Hz/cm^2 of 5.5-6.5 MeV neutrons, showing a high efficiency for cosmic muons detection.
@article{arxiv.1006.0135,
title = {Position resolution and efficiency measurements with large scale Thin Gap Chambers for the super LHC},
author = {Nir Amram and Gideon Bella and Yan Benhammou and Marco A. Diaz and Ehud Duchovni and Erez Etzion and Alon Hershenhorn and Amit Klier and Nachman Lupu and Giora Mikenberg and Dmitry Milstein and Yonathan Munwes and Osamu Sasaki and Meir Shoa and Vladimir Smakhtin and Ulrich Volkmann},
journal= {arXiv preprint arXiv:1006.0135},
year = {2011}
}
Comments
Presented at the 12 Vienna conference on Instrumentation, February 2010