Performance of four 4. 5 m two-in-one superconducting R and D dipoles for the SSC

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5613724

Dahl, P; Cottingham, J; Fernow, R; Garber, M; Ghosh, A; Goodzeit, C; Greene, A; Herrera, J; Kahn, S; Kelly, E

Four 4.5 m long superconducting dipoles built to specifications similar to those for SSC Reference Design A have been successfully tested. They were wound with NbTi cable in two-layer costheta coils of 3.2 cm inner diameter. The coil ends were flared to increase the minimum bending radius, anticipating coils wound from prereacted Nb/sub 3/Sn. The coils were mounted in a reusable ''two-in-one'' iron yoke prestressed by means of a bolted stainless steel shell. The first two magnets as well as the fourth one, a special magnet designed to study cross-talk between the bores, used CBA/Tevatron cable. The third utilized cable with improved (''high homogeneity'') NbTi conductor. All four reached central fields corresponding to their short sample limits at 4.5K without training, nearly 6.0T for the first two magnets, 6.5T for the third, and 5.4T for the fourth. At 2.5K modest training was required to reach short sample limits of 7.2T, 7.1T, 7.8T, and 6.6T respectively. The measured values of the allowed harmonics were within several x 10/sup -4/ of the calculated ones.

• Research Organization: Brookhaven National Lab., Upton, NY (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5613724
• Report Number(s): BNL-36627; CONF-850504-169; ON: DE85012269
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430303* -- Particle Accelerators-- Experimental Facilities & Equipment
DIPOLES
ELECTRIC COILS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNET COILS
MAGNETIC FIELDS
MAGNETS
MULTIPOLES
PERFORMANCE TESTING
STORAGE RINGS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING SUPER COLLIDER
TESTING
ULTRALOW TEMPERATURE