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

Volume

20

Issue

3

fYear

2010

fDate

6/1/2010 12:00:00 AM

Firstpage

1033

Lastpage

1036

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;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2043834

Filename

5443500