2001•IEEE Transactions on Applied SuperconductivityOpen access
Field quality in Fermilab-built models of quadrupole magnets for the LHC interaction region
N. Andreev, T. Arkan, P. Bauer, R. Bossert, J. Brandt, S. Caspi, D.R. Chichili, J. Carson, J. DiMarco, S. Fehér, Abesh Ghosh, H. Glass, V.V. Kashikhin, J. Kerby, M.J. Lamm, A.D. McInturff, Alexander Makarov, A. Nobrega, I. Novitski, T. Ogitsu, D. Orris, J. Ozelis, T. Peterson, R. Rabehl, W. Robotham, G. Sabbi, R.M. Scanlan, P. Schlabach, C. Sylvester, J. Strait, M. Tartaglia, J. Tompkins, G. Velev, S. Yadav, A.V. Zlobin
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Abstract
Superconducting quadrupole magnets for the interaction regions of the Large Hadron Collider are being developed by the US-LHC Accelerator Project. These 70 mm bore quadrupole magnets are intended to operate in superfluid helium at 1.9 K with a nominal field gradient of 215 T/m. A series of 2 m model magnets has been built and cold tested at Fermilab to optimize their design and construction and to study the performance of the magnets. Field measurements of the 8 model magnets and comparisons with the required field quality are reported in this paper.