Measurement of Resistance and Strength of Conductor Splices in the MICE Coupling Magnets

Conference · Wed Aug 19 04:00:00 EDT 2009

OSTI ID:973518

Xu, Feng Yu; Pan, Heng; Wu, Hong; Lui, X K; Li, E; Dietderich, Dan; Higley, Hugh; Tam, D G; Trillaud, Fredric; Wang, Li; Green, M A

The superconducting magnets for the Muon Ionization Cooling Experiment [1] (MICE) use a copper based Nb-Ti conductor with un-insulated dimensions of 0.95 by 1.60 mm. There may be as many as twelve splices in one MICE superconducting coupling coil. These splices are to be wound in the coil. The conductor splices produce Joule heating, which may cause the magnet to quench. A technique of making conductor splices was developed by ICST. Two types of 1-meter long of soldered lap-joints have been tested. Side-by-side splices and up-down one splices were studied theoretically and experimentally using two types of soft solder made of eutectic tin-lead solder and tin-silver solder. The resistances of the splices made by ICST were tested at LBNL at liquid helium temperatures over a range of magnetic fields up to 5 T. The breaking strength of 250 mm long splices was also measured at room temperature and liquid nitrogen temperature.

• Research Organization: Ernest Orlando Lawrence Berkeley National Laboratory, Berkeley, CA (US)
• Sponsoring Organization: Accelerator& Fusion Research Division; Engineering Division
• DOE Contract Number: AC02-05CH11231
• OSTI ID: 973518
• Report Number(s): LBNL-2554E
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COPPER
CRYOGENICS
DIMENSIONS
EUTECTICS
HELIUM
IONIZATION
JOULE HEATING
MAGNETIC FIELDS
MAGNETS
MICE
MUONS
NITROGEN
SUPERCONDUCTING MAGNETS