Hadron beam test of a scintillating fibre tracker system for elastic scattering and luminosity measurement in ATLAS

F. Anghinolfi, S. Ask, P. Barrillon, G. Blanehot, S. Blin, A. Braem, C. De La Taille, B. Di Girolamo, I. Efthymiopoulos, J. Faustino, D. Fournies, S. Franz, P. Grafström, L. Gurriana, M. Haguenauer, V. Hedberg, M. Heller, S. Hoffmann, W. Iwanski, C. JoramA. Kočnár, B. Lavigne, B. Lundberg, A. Maio, M. J P Maneira, A. Mapelli, C. Marques, U. Mjörnmark, P. Conde Muíño, P. Puzo, M. Rijssenbeek, J. G. Saraiva, N. Seguin-Moreau, S. Soares, H. Stenzel, M. Thioye, D. Varouchas, V. Vorobel

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A scintillating fibre tracker is proposed to measure elastic proton scattering at very small angles in the ATLAS experiment at CERN. The tracker will be located in so-called Roman Pot units at a distance of 240 m on each side of the ATLAS interaction point. An initial validation of the design choices was achieved in a beam test at DESY in a relatively low energy electron beam and using slow off-the-shelf electronics. Here we report on the results from a second beam test experiment carried out at CERN, where new detector prototypes were tested in a high energy hadron beam, using the first version of the custom designed front-end electronics. With a spatial resolution of 25 μm an adequate tracking performance was obtained, under conditions which are similar to the situation at the LHC. In addition, the alignment method using so-called overlap detectors was studied and shown to have the expected precision. © 2007 IOP Publishing Ltd and SISSA.
    Original languageEnglish
    Article numberA42
    JournalJournal of Instrumentation
    Volume2
    DOIs
    Publication statusPublished - 20 Jul 2007

    Keywords

    • Particle tracking detectors
    • Scintillators and scintillating fibres and light guides

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