End effects on the loss for short superconductors

Conference · Fri Jan 01 04:00:00 EST 1982 · Adv. Cryog. Eng.; (United States)

OSTI ID:6233030

Carr, Jr, W J

End effects result from the necessity for the induced circulating current to cross the conductor near the ends; they therefore yield data on the anisotropy of the superconducting material. For an untwisted filament it has been shown that domains of current density form near the ends when the middle of the conductor is fully penetrated by a magnetic field. As no current flows out of the end of a conductor the exial electrical field has to vanish at that point. It does not do this gradually; rather, it goes to zero at a domain boundary near the end. In this study, a strip consisting of untwisted filaments is considered, the effect of the loss is examined, and a precise ''critical length'' for the conductor is calculated, by use of a Bean model, Maxwell's equation, and other calculation methods.

• Research Organization: Westinghouse Electric Corporation, Pittsburgh, PA
• OSTI ID: 6233030
• Report Number(s): CONF-810835-
• Conference Information: Journal Name: Adv. Cryog. Eng.; (United States) Journal Volume: 28
• Country of Publication: United States
• Language: English

Related Subjects

420201* -- Engineering-- Cryogenic Equipment & Devices
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CALCULATION METHODS
COMPOSITE MATERIALS
CRITICAL CURRENT
CRYOGENICS
CURRENTS
DIMENSIONS
ELECTRIC CURRENTS
END EFFECTS
ENERGY LOSSES
FILAMENTS
LENGTH
LOSSES
MATERIALS
MATERIALS TESTING
POWER
SUPERCONDUCTORS
TESTING