Self Magnetic Field Measurements on Cable-In-Conduit Conductors for JT-60SA EF-H and EF-L coils

Author

Obana, T. ; Takahata, K. ; Hamaguchi, S. ; Chikaraishi, H. ; Imagawa, S. ; Mito, T. ; Kizu, K. ; Murakami, H. ; Yoshida, Kenta

Author_Institution

Nat. Inst. for Fusion Sci., Gifu, Japan

Volume

22

Issue

3

fYear

2012

fDate

6/1/2012 12:00:00 AM

Firstpage

4803404

Lastpage

4803404

Abstract

Self magnetic field measurements of the NbTi Cable-In-Conduit (CIC) conductors for the EF-H and EF-L coils were taken during current sharing temperature (Tcs) measurements in order to understand the characteristics of the CIC conductors without sub-wrapping tapes. Taking into account the magnetic field measurements, the current inside the conductors was analysed using analytical models. Additionally, the analytical results of the EF-H and EF-L coil conductors were compared with those of the prototype conductor with the sub-wrapping tapes in terms of the current center in the conductor. The analytical results indicate that sub-wrapping tapes will influence current transfer in the CIC conductor under DC operation.

Keywords

magnetic field measurement; superconducting coils; EF-L coils; JT-60SA EF-H coils; cable-in-conduit conductors; coil conductors; current sharing temperature measurement; self magnetic field measurements; subwrapping tapes; Coils; Conductors; Current distribution; Magnetic field measurement; Magnetic fields; Temperature measurement; Current distribution; JT-60SA; NbTi cable-in-conduit conductor; magnetic field measurement; sub-wrapping tape;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2011.2178371

Filename

6096386