Title :
A new high-gradient correction quadrupole for the Fermilab luminosity upgrade
Author :
Mantsch, P. ; Carson, J. ; Riddiford, A. ; Lamm, M.J.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
Special superconducting correction quadrupoles are needed for the luminosity upgrade of the Fermilab Tevatron Collider. These correctors are part of the low-beta system for the interaction regions at B0 and D0. The requirements are high gradient and low current. A quadrupole has been designed that meets the operating gradient of 0.63 T/cm at 1086 A. The one-layer quadrupole is wound with a cable consisting of five individually insulated rectangular strands. The five strands are overwrapped with Kapton and epoxy impregnated glass tape. The winding, curing, and collaring of the magnet are accomplished in the same manner as for Tevatron-like magnets using Rutherford style cable. Once the magnet is complete the five strands are connected in series. A prototype quadrupole has been assembled and tested. The magnet reached a plateau current of 1560 A, corresponding to a gradient of 0.91 T/cm without training. The measured field harmonics are substantially better than required
Keywords :
beam handling equipment; proton accelerators; superconducting magnets; synchrotrons; Fermilab Tevatron Collider; Fermilab luminosity upgrade; Kapton; Rutherford style cable; Tevatron-like magnets; collaring; curing; epoxy impregnated glass tape; field harmonics; high gradient; high-gradient correction quadrupole; insulated rectangular strands; interaction regions; low current; low-beta system; one-layer quadrupole; plateau current; superconducting correction quadrupoles; winding; Accelerator magnets; Cable insulation; Coils; Colliding beam accelerators; Conducting materials; Conductors; Prototypes; Superconducting magnets; Wires; Wounds;
Conference_Titel :
Particle Accelerator Conference, 1989. Accelerator Science and Technology., Proceedings of the 1989 IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/PAC.1989.73096
