Anomalous low field magnetization in fine filament NbTi conductors
Conference
·
OSTI ID:6919822
The first cable conductors for SSC were made with NbTi filaments whose diameters were in the 18 to 23 micron range. In an effort to reduce the magnetization effects in accelerator dipoles resulting from these large filaments, second generation conductors are now being manufactured with much smaller filaments. As part of this development a series of NbTi conductors were made with filament diameters ranging from 8.0 to 2.8 ..mu..m and having an average interfilament spacing of approximately 12% of filament diameter. Measurements at 4.3 K show that as the filament spacing decreases below a certain critical value the low field magnetization increases rapidly. This increase is seen to be strong function of interfilament distance, magnetic field and temperature. Details of these measurements and its implication for practical high current SSC wire design are discussed.
- Research Organization:
- Brookhaven National Lab., Upton, NY (USA); Supercon, Inc., Shrewsbury, MA (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6919822
- Report Number(s):
- BNL-38854; CONF-860914-25; ON: DE87003473
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fine filament NbTi conductors for the SSC
Magnetization and critical currents of NbTi wires with fine filaments
The effect of magnetic impurities and barriers on the magnetization and critical current of fine filament NbTi composites
Conference
·
Tue Feb 28 23:00:00 EST 1989
· IEEE Trans. Magn.; (United States)
·
OSTI ID:5883630
Magnetization and critical currents of NbTi wires with fine filaments
Conference
·
Mon Dec 31 23:00:00 EST 1984
·
OSTI ID:5106537
The effect of magnetic impurities and barriers on the magnetization and critical current of fine filament NbTi composites
Conference
·
Wed Dec 31 23:00:00 EST 1986
·
OSTI ID:5743168