To the Optimization of Quench Performance for a Large REBCO Cable-in-Conduit Conductor

REBCO cable-in-conduit conductors at the level of tens of kiloamperes are being developed for application in fusion magnets. One important aspect to study is their performance in the case of a quench event. A conductor should survive from such an event without over design; therefore, they should be properly optimized. Using a simulation model developed based on THEA code, we studied the parameters of a REBCO conductor in a fusion magnet for their influence on the quench performance, evaluated by hot spot temperature and quench detection. According to these results, the principles of the optimization of the quench performance of a REBCO conductor are discussed.