[14p-4A-1~26] 11.4 Analog applications and their related technologies

[14p-4A-3] Magnetic coupling between a high-T_c SQUID gradiometer and a flip-chip input coil

〇Seiji Adachi¹, Akira Tsukamoto¹, Yasuo Oshikubo¹, Keiichi Tanabe¹ (1.SRL-ISTEC)

Keywords:high-Tc superconductor,SQUID,input coil

We developed non-destructive evaluation systems using high-Tc superconductor, which can be operated under non-shielded environment. The system consists of a detector and SQUID. SQUID gradiometer was utilized, since it works rather stably. A superconducting input coil was prepared on another substrate and was laid above the gradiometer. Magnetic coupling efficiency is determined by design and configuration of the coil and the gradiometer. We investigated the efficiency by using different coils for the identical gradiometer.