Position resolution and efficiency measurements with large scale Thin Gap Chambers for the super LHC

Nir Amram, Gideon Bella, Yan Benhammou, Marco A. Diaz, Ehud Duchovni, Erez Etzion, Alon Hershenhorn, Amit Klier, Nachman Lupu, Giora Mikenberg, Dmitry Milstein, Yonathan Munwes, Osamu Sasaki, Meir Shoa, Vladimir Smakhtin, Ulrich Volkmann

Research output: Contribution to journalArticlepeer-review


New developments in Thin Gap Chamber (TGC) detectors to provide fast trigger information 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 C/cm of wire, without showing any deterioration in their performance. Two large (1.2×0.8 m2) prototypes containing four gaps, each gap providing pad, strip and wire 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, a single gap position resolution of better than 60μm has been obtained. For an incidence angle of 20° a resolution of less than 100μm was achieved. TGC prototypes were also tested under a flux of 105 Hz/cm2 of 5.56.5 MeV neutrons, showing a high efficiency for the detection of cosmic muons.

Original languageEnglish
Pages (from-to)177-181
Number of pages5
JournalNuclear Instruments & Methods In Physics Research Section A-Accelerators Spectrometers Detectors And Associated Equipment
Issue number1
StatePublished - 2 Feb 2011


  • Aging effect
  • Position resolution
  • Super LHC
  • Thin Gap Chamber

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Instrumentation


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