Canted Cosine Theta Dipole Magnet Wound Using REBCO CORC Cables–The Effect of Magnetization on Magnetic Field Quality
IEEE Transactions on Applied Superconductivity(2023)
Abstract
This paper presents the results of FEM analysis of the effect of REBCO CORC cable magnetization on the field quality of a canted cosine theta (CCT) dipole magnet. The magnetic properties of the CORC cable were the results of our measurements of its
M
(
H
) curves at 4.2 K and magnetic fields up to 8 T. This magnetization data was used to calculate the field error for a CCT experimental magnet developed by LBNL. The results of analysis and experiment were compared. To make the computation less “expensive”, we modelled only a section of 10 or 8 turns of the magnet central part and calculated
b
1
and
b
3
fields on a circle 2/3 of the innermost layer center line. Calculated
b
3
fields were compared with experimentally obtained values on the dipole operating in self-field mode. Reasonable agreement of the numerical and experiment values was achieved. The work continued with calculating of field errors for a 7 double layer version of that design.
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Key words
Canted cosine theta,CORC,field error,REBCO
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