Estimation of beam loss induced quench levels in LHC magnets. Status and plans.

by Dariusz Bocian (AB-BI)

Tuesday 14 Aug 2007, 14:15 → 15:15 Europe/Zurich

AT Auditorium (CERN)

The experience gained during the operation of the existing superconducting accelerator magnets (Tevatron, HERA and RHIC) demonstrated that beam induced quenching cannot be a priori excluded. The integrated luminosity is by definition compromised by any type of quenches, because of the downtime required for re-establishing the operating conditions. High luminosity operation can even be limited by beam induced quenching. A fair estimation of the quench energy margin of different magnet families along the accelerator ring is an essential specification for compatible design of the collimation and correct setting of the beam loss monitors. The heat transfer process in superconducting coils of various LHC magnets will be briefly review and the methodology for the estimation of the minimum quench energy required for quenching a magnet will be presented. Finally the status and needs related to numerical simulations of the minimum quench energy of different magnet families will be reported. Note the unusual time.