Presentation Information

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)

[10p-A31-5]Transport Critical Current Measurement of REBCO Conductors under Combined Pulsed Magnetic Field and Pulsed Current Conditions

〇Yuji Tsuchiya¹, Alexandre Zampa², Yoshimitsu Kohama³, Akira Matsuo³, Koichi Kindo³, Kenichiro Mizuno⁴, Satoshi Awaji¹ (1.Tohoku Univ., 2.UGA / CNRS, 3.Univ. Tokyo, 4.MTL)

Keywords:

Superconcutor,Ic measurements,Pulsed magnetic field

Critical current (Ic) evaluation under high fields is essential for developing 30-T-class REBCO magnets, yet steady-field facilities above 30 T are scarce. We developed a new Ic measurement technique combining the long flat-top pulsed magnet at ISSP, University of Tokyo, with a 1-kA-class pulsed current source. In a quasi-steady field of 38.7 T (70-ms flat-top), we obtained the *I–V* characteristics of a Fujikura REBCO tape, yielding Ic = 45 A at 26 K.

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