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Carcagno, R.

Paper Title Page
WEPKF074 Magnetic Field Measurements of the LHC Inner Triplet Quadrupoles Produced at Fermilab 1777
 
  • G. Velev, R. Bossert, R. Carcagno, J. DiMarco, S. Feher, H. Glass, V. Kashikhin, J.S. Kerby, M. Lamm, T. Nicol, L. Nobrega, D. Orris, T. Page, T. Peterson, R. Rabehl, P. Schlabach, J. Strait, C. Sylvester, M. Tartaglia, J. Tompkins, A.V. Zlobin
    Fermilab, Batavia, Illinois
  
  Production of 18 superconducting low-beta quadrupoles (MQXB) for the LHC is well advanced. These 5.5 m long magnets are designed to operate at 1.9 K with a peak field gradient of 215 T/m in the 70 mm apertures. Two MQXB cold masses with a dipole orbit corrector between them form a single cryogenic unit (LQXB) which is the Q2 optical element of the final focus triplets in the LHC interaction regions. A program of magnetic field quality and alignment measurements of the cold masses are performed at room temperature during magnet fabrication and LQXB assembly as well as at superfluid helium temperature. Results of these measurements are summarized in this paper.