DocumentCode
1104200
Title
Parametric study on coupling loss in subsize ITER Nb3Sn cabled specimen
Author
Nijhuis, Arend ; Ten Kate, Herman H J ; Bruzzone, Pierluigi ; Bottura, Luca
Author_Institution
Low Temp. Div., Twente Univ., Enschede, Netherlands
Volume
32
Issue
4
fYear
1996
fDate
7/1/1996 12:00:00 AM
Firstpage
2743
Lastpage
2746
Abstract
The cable in conduit conductors for the various ITER coils are required to function under pulse conditions and fields up to 13 T. A parametric study, restricted to a limited variation of the reference cable lay out, is carried out to clarify the quantitative impact of various cable parameters on the coupling loss and to find realistic values for the coupling loss time constants to be used in ac loss computations. The investigations cover ac coupling loss measurements on jacketed sub- and full size conductors with variations in type of cabling, twist pitch, void fraction, and thickness of the chromium coating. The results are summarised and conclusions regarding the ITER cable design are presented. Scaling laws for coupling loss versus void fraction and number of cabling stages are presented
Keywords
eddy current losses; fusion reactor materials; niobium alloys; superconducting magnets; superconducting materials; tin alloys; type II superconductors; 13 T; Nb3Sn; cable in conduit conductors; cable parameters; coupling loss; coupling loss time constants; jacketed conductors; reference cable lay out; subsize ITER Nb3Sn cabled specimen; twist pitch; void fraction; Cable shielding; Chromium; Coatings; Coils; Conductors; Loss measurement; Niobium; Parametric study; Size measurement; Thickness measurement;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.511442
Filename
511442
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