Nb/sub 3/Sn dipole magnet reacted after winding

Conference · Sat Sep 01 00:00:00 EDT 1984

OSTI ID:6275028

Taylor, C; Scanlan, R; Peters, C; Wolgast, R; Gilbert, W; Hassenzahl, W; Meuser, R; Rechen, J

A 5 cm bore dia., 1-m-long dipole model magnet was constructed by winding un-reacted cable, followed by reaction and epoxy-impregnation. Experience and test results are described on the 1.7 mm dia. internal-tin wire, the eleven-strand flattened cable, fiberglass insulation, and construction of the magnet. Each half of the magnet has two double-pancake-type windings that were reacted in a single operation. The two double-pancakes were then separately vacuum impregnated after soldering the flexible Nb-Ti leads to the Nb/sub 3/Sn conductors. No iron flux return yoke was used. In initial tests a central field of 8.0 T was reached at 4.4 K. However, evidence from training behavior, and 1.8 K tests indicate that premature quenching, rather than critical current of the cable, limited the field intensity. The magnet was reassembled and more rigidly clamped; additional test results are reported.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6275028
• Report Number(s): LBL-17655; CONF-840937-22; ON: DE85005166
• Resource Relation: Conference: Applied superconductivity conference, San Diego, CA, USA, 9 Sep 1984; Other Information: Portions are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
SUPERCONDUCTING MAGNETS
FABRICATION
DIPOLES
INTERMETALLIC COMPOUNDS
NIOBIUM ALLOYS
PERFORMANCE
SUPERCONDUCTORS
TIN ALLOYS
ALLOYS
ELECTRICAL EQUIPMENT
ELECTROMAGNETS
EQUIPMENT
MAGNETS
MULTIPOLES
SUPERCONDUCTING DEVICES
420201* - Engineering- Cryogenic Equipment & Devices