M Hoffer

Publications (5)1.87 Total impact

• Source

  Available from: Ioan Dafinei

  Article: The CMS experiment at the CERN LHC

  The CMS Collaboration, S Chatrchyan, G Hmayakyan, V Khachatryan, A M Sirunyan, W Adam, T Bauer, T Bergauer, H Bergauer, M Dragicevic, [......], G Abdullaeva, A Avezov, M I Fazylov, E M Gasanov, A Khugaev, Y N Koblik, M Nishonov, K Olimov, A Umaraliev, B S Yuldashev
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  ABSTRACT: The Compact Muon Solenoid (CMS) detector is described. The detector operates at the Large Hadron Collider (LHC) at CERN. It was conceived to study proton-proton (and lead-lead) collisions at a centre-of-mass energy of 14 TeV (5.5 TeV nucleon-nucleon) and at luminosities up to 1034 cm−2 s−1 (1027 cm−2 s−1). At the core of the CMS detector sits a high-magnetic-field and large-bore superconducting solenoid surrounding an all-silicon pixel and strip tracker, a lead-tungstate scintillating-crystals electromagnetic calorimeter, and a brass-scintillator sampling hadron calorimeter. The iron yoke of the flux-return is instrumented with four stations of muon detectors covering most of the 4π solid angle. Forward sampling calorimeters extend the pseudorapidity coverage to high values (|η| ≤ 5) assuring very good hermeticity. The overall dimensions of the CMS detector are a length of 21.6 m, a diameter of 14.6 m and a total weight of 12500 t.
  Journal of Instrumentation 08/2008; 3(08):S08004. · 1.87 Impact Factor
• Source

  Available from: Anne Pallarès

  Article: Large scale test of wedge shaped micro strip gas counters

  M. Ackermann, S. Atz, V. Aulchenko, S. Bachmann, B. Baiboussinov, S. Barthe, W. Beaumont, T. Beckers, F. Beißel, Y. Benhammou, [......], W.Van Doninck, Ch.Van Dyck, P. Vanlaer, L.Van Lancker, P.G. Verdini, S. Weseler, B. Wittmer, R. Wortmann, A. Zghiche, V. Zhukov
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  ABSTRACT: In order to check the system aspects of the forward–backward MSGC tracker designed for the future CMS experiment at LHC, 38 trapezoidal MSGC counters assembled in six multi-substrates detector modules were built and exposed to a muon beam at the CERN SPS. Results on the gain uniformity along the wedge-shaped strip pattern and across the detector modules are shown together with measurements of the detection efficiency and the spatial resolution.
  Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment.
• Source

  Available from: Fabien Jeanneau

  Article: CMS Forward-Backward MSGC milestone

  O Bouhali, S Bachmann, S. Barthe, W Beaumont, T. Beckers, F Beissel, Ya Benhammou, A M Bergdolt, K. Bernier, I. Boulogne, [......], Fred Udo, W K Van Doninck, C. Van Dyck, L Van Lancker, C Van der Velde, P Vanlaer, P G Verdini, R Wortmann, A Zghiche, V Zhukov
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  ABSTRACT: The CMS MF1 milestone was set in order to evaluate system aspects of the CMS forward-backward MSGC tracker, to check the design and feasibility of mass production and to set up assembly and test procedures. We describe the construction and the experience gained with the operation of a system of 38 MSGC detectors assembled in six multi-substrate detector modules corresponding to the geometry of the forward-backward MSGC tracker in CMS. These modules were equipped with MSGCs mounted side by side, forming a continuous detector surface of about 0.2 m2. Different designs were tried for these modules. The problems encountered are presented with the proposed solutions. Operation conditions for the 38 MSGCs are reported from an exposure to a muon beam at the CERN SPS. Gain uniformity along the wedge-shaped strip pattern and across the detector modules are shown together with the detection efficiency, the spatial resolution, alignment and edge studies.
• Article: Comparative studies of MSGC and MSGC-GEM detectors

  Ya Benhammou, J.-M. Brom, J.-C. Fontaine, D Huss, F. Jeanneau, A Lounis, I Ripp-Baudot, A Zghiche, J. P. Coffin, H Eberlé, J M Helleboid, M Hoffer, M R Kapp, C. Maazouzi, M H Sigward, G SCHUSTER, R Wortmann
• Article: The CMS experiment at the CERN LHC

  S. Chatrchyan, G Hmayakyan, V Khachatryan, AM Sirunyan, W Adam, T Bauer, T Bergauer, H Bergauer, M Dragicevic, J. Ero, [......], M. Baarmand, L Baksay, S Guragain, M. Hohlmann, H Mermerkaya, R Ralich, I Vodopiyanov, MR Adams, IM Anghel, L Apanasevich