• DocumentCode
    2551979
  • Title

    Radiation damage in the LHCb Vertex Locator

  • Author

    Harrison, S.

  • Author_Institution
    LHCb VELO Group, Univ. of Manchester, Manchester, UK
  • fYear
    2012
  • fDate
    Oct. 27 2012-Nov. 3 2012
  • Firstpage
    1824
  • Lastpage
    1827
  • Abstract
    LHCb is a dedicated experiment to study New Physics in the decays of beauty and charm hadrons at the Large Hadron Collider (LHC) at CERN. The beauty and charm hadrons are identified through their flight distance in the Vertex Locator (VELO), and hence the detector is critical for both the trigger and offline physics analyses. Due to their close proximity to the LHC beam the VELO sensors are exposed to higher ftuences than those of any other LHC subdetector. These proceedings present the primary results from radiation damage studies performed from the start of LHC data taking until late 2012. They include the first observation of type-inversion at the LHC, the highest statistics measurement of the silicon effective band gap after irradiation, and the observation of a radiation-induced charge loss effect due to the presence of a second metal layer.
  • Keywords
    position sensitive particle detectors; silicon radiation detectors; CERN; LHC beam; LHC subdetector; LHCb vertex locator; Large Hadron Collider; VELO sensors; beauty hadrons; charm hadrons; flight distance; metal layer; offline physics analyses; radiation damage; radiation-induced charge loss effect; silicon effective band gap; statistics measurement; trigger analyses;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE
  • Conference_Location
    Anaheim, CA
  • ISSN
    1082-3654
  • Print_ISBN
    978-1-4673-2028-3
  • Type

    conf

  • DOI
    10.1109/NSSMIC.2012.6551425
  • Filename
    6551425