Digitale Medien
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
73 (1993), S. 1873-1881
ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
The magnetic weak coupling between superconducting fine filaments of multifilamentary NbTi wires for high-energy-physics applications (dipole magnets for large hadron collider at CERN) is studied through ac magnetic measurements down to very low frequencies (0.5 Hz). The shielded and trapped magnetic fluxes are measured versus the temperature at fixed ac field superimposed on a constant dc field. The measured curves look like measurements on high-Tc superconductors with the characteristic two maximum values of the trapped magnetic flux. One of these two peaks can be related to the superconducting transition of NbTi filaments, the other one to the weak coupling between the filaments. The measurements of the field and the temperature dependence of the latter peak allow the critical current of the weak coupling versus the field to be calculated giving interesting information about the proximity effect in the superconducting-normal-superconducting array.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.353174
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