2D thermal modeling of the Nb-Ti large aperture quadrupole for the LHC upgrade

Tuesday 16 Feb 2010, 14:00 → 15:00 Europe/Zurich

30/7-012 (CERN)

For the first luminosity upgrade of the LHC, the inner triplet quadrupole magnets will be replaced. One of the main issues is the thermal performance of the new magnets. With increased heat sources (i.e. beam loss) and a limited heat extraction the magnet quenches easier. One of the interesting improvements in heat extraction is the enhanced cable insulation, which is researched extensively. This however is only one of the restrictions that the heat flow encounters on its way to the heat exchanger. In this seminar, these other restrictions are considered. A 2D temperature distribution over the magnet’s cross section is calculated for different thermal designs. The influence of collar and yoke packing factor, helium channel width and enhanced ground insulation are considered. Author: Erwin BIELERT

Slides Presentation_Magnet_Seminar_BielertER.pdf