Speaker
Barbara Holzer
Description
Results from the 2008 and 2009 operation of the LHC BLM system are presented with respect to the reliability and availability of the system. Have the design goals been attained? Where are known limitations? Can they be overcome? If so, how and by when? Among others, the precision of the beam abort threshold levels with respect to the magnet quench levels will be discussed. Threshold levels at different energies will be compared to the noise levels and the limits of the readout electronics. Are the thresholds at higher energies still safely above the noise levels? Can the thresholds be set high enough to accommodate for increased beam intensity? An extrapolation from the measured loss profiles (injection losses as well as betatron cleaning and momentum cleaning losses) towards the expected loss profiles at higher intensity and energy will be given. It will be verified whether they would stay below quench and damage levels (respectively the currently enforced abort thresholds).