Critical current measurements of ISABELLE superconducting cables
Short sample critical measurements on ISABELLE superconducting cables are described. The purpose is to provide a basis for assessing magnet performance and to provide Quality Assurance data on materials purchases. The measurements are made on 1 m samples in a dipole magnet. Voltages on the V-I curve are determined to a precision of several tenths of a microvolt. The critical current is defined as that at which rho = 1 x 10/sup -12/..cap omega..cm/sup 1/ and is determined to a precision of 1 to 2%. Similar techniques are employed in determining the critical currents of the wires of which the cables are made. The relation between cable and wire critical currents will be discussed. It is found that well insulated, slowly ramped cables of the ISABELLE design are stable for currents up to approximately rho = 2 x 10/sup -12/..cap omega..cm. The value of current corresponding to the resistivity determines the limit of magnet performance. Additional properties of the cabled conductors such as the normal state resistance and the longitudinal quench propagation velocity are also measured.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6728373
- Report Number(s):
- BNL-31394; CONF-821108-5; ON: DE83000716
- Resource Relation:
- Conference: Applied superconductivity conference, Knoxville, TN, USA, 30 Nov 1982
- Country of Publication:
- United States
- Language:
- English
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71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ISABELLE STORAGE RINGS
SUPERCONDUCTING CABLES
CRITICAL CURRENT
EXPERIMENTAL DATA
PERFORMANCE TESTING
CABLES
CONDUCTOR DEVICES
CURRENTS
DATA
ELECTRIC CABLES
ELECTRIC CURRENTS
ELECTRICAL EQUIPMENT
EQUIPMENT
INFORMATION
NUMERICAL DATA
STORAGE RINGS
TESTING
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