Results of magnetic axis measurements on a prototype main lattice quadrupole for the LHC

The lattice quadrupole assembled with correction magnets in its helium enclosure, the cold mass, and integrated in a common cryostat called the Short Straight Section (SSS). The SSS-5 prototype is used to study the behavior of the magnetic axis through the various steps of the installation cycle for the series quadrupoles including transportation, thermal-cycles and being lowered into the tunnel.