Performance of three 4. 5 m dipoles for SSC reference design D

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

OSTI ID:5024936

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

Three 4.5 m long dipoles for Reference Design D of the proposed Superconducting Super Collider have been successfully tested. The magnets are cold-iron (and cold bore) 1-in-1 dipoles, wound with current density-graded high homogeneity NbTi cable in a two-layer cos theta coil of 40 mm inner diameter. The coil is prestressed by 15 mm wide stainless steel collars, and mounted in a circular, split iron yoke of 267 mm outer diameter, supported in a cylindrical yoke containment vessel. At 4.5 K the magnets reached a field of about 6.6T with little training, or the short sample limit of the conductor, and in subcooled (2.6 to 2.4 K) liquid, 8T was achieved. The allowed harmonics were close to the predicted values, and the unallowed harmonics small. The sextupole trim coil operated at eight times the required current without training.

• Research Organization: Brookhaven National Lab., Upton, NY (USA); Fermi National Accelerator Lab., Batavia, IL (USA); Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC02-76CH00016
• OSTI ID: 5024936
• Report Number(s): BNL-37011; CONF-850920-5; ON: DE86001736
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
430100* -- Particle Accelerators-- Design
Development
& Operation
ALLOYS
BEAM BENDING MAGNETS
DIPOLES
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETIC FIELDS
MAGNETS
MULTIPOLES
NIOBIUM ALLOYS
PERFORMANCE TESTING
STORAGE RINGS
SUPERCONDUCTING DEVICES
SUPERCONDUCTING MAGNETS
SUPERCONDUCTING SUPER COLLIDER
TESTING
TITANIUM ALLOYS
ULTRALOW TEMPERATURE