Test results from two 5m two-in-one superconducting magnets for the SSC

Conference · Fri Mar 01 04:00:00 EST 1985 · IEEE Trans. Magn.; (United States)

OSTI ID:6385861

Cottingham, J G; Dahl, P F; Fernow, R C; Garber, M; Ghosh, A K; Goodzeit, C L; Greeme, A F; Herrera, J C; Kelly, E R; Palmer, R B; Sampson, W B

Two 5m long superconducting dipole magnets with specifications similar to the reference design for the proposed Superconducting Super Collider have been successfully tested. The ''cos /theta/'' coils of the magnets were made from two layers of ''standard'' CBA/Tevatron NbTi superconductor, keystoned to an angle of 2.8 degrees. The inner diameter of the inner layer was 3.2 cm. The ends of the coils were flared to increase the minimum bending radius so that future magnets can be wound from prereacted Nb/sub 3/Sn. The windings of the two-aperture magnets were clamped in a ''two-in-one'' iron yoke with a tensioned stainless steel shell. The fields of the two apertures were closely coupled, since the flux in one aperture returned through the other. The inner and outer layers of the coil were powered separately so that their short-sample limits would be reached simultaneously. With minimal training the magnets reached a central field of 6 T, the short sample limit of the conductor at the 4.5 K temperature of the liquid helium bath. At 2.6 K, a central field in excess of 7 T was reached, again with minimal training. The measured values of the allowed sextupole and decapole harmonics are within 10% of the calculated values and the non-allowed harmonics are all small or zero, as predicted.

• Research Organization: Brookhaven National Laboratory, Associated Universities, Inc., Upton, NY
• OSTI ID: 6385861
• Report Number(s): CONF-840937-
• Conference Information: Journal Name: IEEE Trans. Magn.; (United States) Journal Volume: MAG 21:2
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
ACCELERATORS
ALLOYS
COUPLINGS
CRITICAL FIELD
CRITICAL TEMPERATURE
CYCLIC ACCELERATORS
DIMENSIONS
DIPOLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
FERMILAB ACCELERATOR
HARMONICS
MAGNETIC DIPOLES
MAGNETIC FIELDS
MAGNETS
MULTIPOLES
NIOBIUM ALLOYS
OSCILLATIONS
PERFORMANCE TESTING
PHYSICAL PROPERTIES
RESEARCH PROGRAMS
SUPERCONDUCTING COILS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SYNCHROTRONS
TESTING
THERMODYNAMIC PROPERTIES
TITANIUM ALLOYS
TRANSITION TEMPERATURE