Title :
Flux Pumping Effect of HTS Films in a Traveling Magnetic Field
Author :
Nakamura, Taketsune ; Sugano, Michinaka ; Doi, Toshiya ; Amemiya, Naoyuki
Author_Institution :
Grad. Sch. of Eng., Kyoto Univ., Kyoto, Japan
fDate :
6/1/2010 12:00:00 AM
Abstract :
This paper reports the possibility of High Temperature Superconductor (HTS) magnetic flux pump for the compensation of slight current decay in persistent mode HTS magnet. As a first step, the linear type magnetic flux pump (LTMFP) is fabricated with the use of the wound BSCCO tapes, and then the preliminary pumping test is carried out by using NbTi load coil in liquid helium. Further, the current transport property of the produced MgB2 thin films is measured, and then the fabrication of the LTMFP has been completed for the purpose of the higher performance as well as higher temperature (e.g., 20 K) operation.
Keywords :
flux flow; high-temperature superconductors; magnetic resonance imaging; niobium alloys; nuclear magnetic resonance; superconducting coils; superconducting magnets; superconducting tapes; superconducting thin films; titanium alloys; BSCCO; HTS films; He; MgB2 thin films; MgB2; NbTi; NbTi load coil; current decay; fabrication; flux pumping effect; linear type magnetic flux pump; liquid helium; persistent mode HTS magnet; pumping test; transport property; traveling magnetic field; wound BSCCO tapes; ${hbox{MgB}}_{2}$; BSCCO; HTS; MRI; NMR; magnetic flux pump;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2010.2043834
