Author: Yorita, T.
Paper Title Page
TUOAC02 Development of HTS Magnets 1095
  • K. Hatanaka, M. Fukuda, N. Hamatani, N. Izumi, K. Kamakura, T. Saito, H. Ueda, Y. Yasuda, T. Yorita
    RCNP, Osaka, Japan
  • T. Kawaguchi
    KT Science Ltd., Akashi, Japan
  A quarter of a century has passed since the discovery of high-temperature superconductor (HTS) materials in 1986. Although many prototype devices using HTS wires have been developed, these applications are presently rather limited in accelerator and beam line facilities. We have investigated the performance of HTS wires applied for magnets excited by alternating current (AC) as well as direct current (DC) for a decade. In order to check feasibilities of pulse magnets using HTS wire, we have fabricated a super-ferric dipole magnet to be operated by lumping currents. Upper and lower coil consists of 3 double pancakes of 200 turns. Critical currents were measured of wire measured at 77K. Self-field Ic of wire was higher than 160A. Ic values of double pancakes were 60-70A. After stacking, they were 47A and 51A for the upper and lower coil, respectively. Cooling tests were successfully done and the Ic values were measured to be 280A at 20K. Performance tests are ongoing in the pulse mode operation.  
slides icon Slides TUOAC02 [5.252 MB]