Author :
Velev, G.V. ; Bossert, R. ; Carcagno, R. ; DiMarco, J. ; Feher, S. ; Kashikhin, V.V. ; Kerby, J. ; Lamm, M. ; Orris, D. ; Schlabach, P. ; Strait, J. ; Sylvester, C. ; Tartaglia, M. ; Tompkins, J.C. ; Zlobin, A.V.
Abstract :
Fermilab, as part of the US-LHC Accelerator Project, is producing superconducting low-beta quadrupole magnets for the large hadron collider (LHC). These 5.5 m long magnets are designed to operate in superfluid helium at 1.9 K with a nominal gradient of 205 T/m in the 70 mm bore. Two quadrupoles separated by a dipole orbit corrector in a single cryogenic assembly comprise the Q2 optical elements of the final focus triplets in the LHC interaction regions. The field quality of the quadrupoles is measured at room temperature during construction of the cold masses as well as during cold testing of the cryogenic assembly. We summarize data from the series measurements of the magnets and discuss various topics of interest.
Keywords :
accelerator magnets; cryogenics; magnetic field measurement; proton accelerators; superconducting magnets; Fermilab; LHC inner triplet quadrupoles; US-LHC Accelerator Project; dipole orbit corrector; large hadron collider; magnetic field measurements; optical elements; single cryogenic assembly; superconducting low-beta quadrupole magnets; superfluid helium; Accelerator magnets; Assembly; Boring; Cryogenics; Extraterrestrial measurements; Helium; Large Hadron Collider; Magnetic field measurement; Superconducting magnets; Temperature measurement; Magnetic field measurements; super-conducting accelerator magnets;
