Neuromagnetic SQUID measurement in a superconducting magnetic shield

  title={Neuromagnetic SQUID measurement in a superconducting magnetic shield},
  author={H.. Ohta and Mayu Aono and Toshiaki Matsui and Y.. Uchikawa and Koichiro Kobayashi and Keiichi Tanabe and Shinichi Takeuchi and K. Narasaki and Satoshi Tsunematsu and Yoshio Koyabu and Yuichi Kamekawa and Kazuo Nakayama and Tetsuo Shimizu and Koike and Koji Hoshino and H. Kotaka and E. Sudoh and Hiroshi Takahara and Yutaka Yoshida and Keita Shinada and Minoru Takahata and Yasuo Yamada and Kuni Kamijo},
  journal={IEEE Transactions on Applied Superconductivity},
A superconducting magnetic shield of high-Tc superconductor Bi(Pb)SrCaCuOx has been constructed whose diameter is 65 cm and length is 160 cm respectively. We have successfully observed somatosensory evoked magnetic fields coming out from human brains in the superconducting magnetic shield stimulating the median nerves of patients by current pulses. We made a 64-channel whole-head SQUID magnetometer of SNS (Superconductor/Normal metal/Superconductor) junctions. The sensitivities of the dc-SQUID… CONTINUE READING