A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z  

Guaglio, G.

Paper Title Page
FRPMN071 The LHC Beam Loss Measurement System 4192
  • B. Dehning, E. Effinger, J. E. Emery, G. Ferioli, G. Guaglio, E. B. Holzer, D. K. Kramer, L. Ponce, V. Prieto, M. Stockner, C. Zamantzas
    CERN, Geneva
  One of the most important elements for the protection of CERN's Large Hadron Collider (LHC) is its beam loss monitoring system. It aims to prevent the super conducting magnets from quenching and to protect the machine components from damages, as a result of critical beam losses. This contribution reviews the design requirements: a high reliability to insure a safe protection and a high availability, a high dynamic range required by the beam dump trigger generation and beam tuning and finally a high radiation tolerance to be able to install the front-end electronics in the LHC tunnel. Examples of the reliability studies using the reliability ISOGRAPH fault tree software package are shown to explain the particular design. Measurement results from the LHC beam loss system installed at HERA (DESY) and at the SPS (CERN) are given to demonstrate its functionality. The detector design of the ionisation chambers and the secondary emission monitors are summarized and measurements with high and low intensity beams as well as with continuous and pulsed proton, muon and neutron beams are discussed.