Four-channel YBa2Cu3O7-y dc-SQUID magnetometer for biomagnetic measurements

Saburo Tanaka; Hideo Itozaki; Haruhisa Toyoda; Naohiko Harada; Akira Adachi; Kenichi Okajima; Tatsuoki Nagaishi; Hisashi Kado

doi:10.1117/12.180996

2 July 1994 Four-channel YBa₂Cu₃O₇-y dc-SQUID magnetometer for biomagnetic measurements

Saburo Tanaka, Hideo Itozaki, Haruhisa Toyoda, Naohiko Harada, Akira Adachi, Kenichi Okajima, Tatsuoki Nagaishi, Hisashi Kado

Author Affiliations +

Proceedings Volume 2160, Superconductive Devices and Circuits; (1994) https://doi.org/10.1117/12.180996
Event: OE/LASE '94, 1994, Los Angeles, CA, United States

Abstract

A 4-channel YBa₂Cu₃O₇-y (YBCO) thin film dc-SQUID magnetometer was fabricated. Biomagnetic measurements were performed by using the 4 channel SQUID array at 77$KAPPA in a magnetically shielded room. We have successfully measured 4 channel magnetocardiac signals clearly in real time mode. The best magnetic field resolution of the four SQUIDs was 370fT/Hz^1/2 at 10Hz and 200fT/Hz^1/2 in the white noise region.

Citation Download Citation

Saburo Tanaka, Hideo Itozaki, Haruhisa Toyoda, Naohiko Harada, Akira Adachi, Kenichi Okajima, Tatsuoki Nagaishi, and Hisashi Kado "Four-channel YBa₂Cu₃O₇-y dc-SQUID magnetometer for biomagnetic measurements", Proc. SPIE 2160, Superconductive Devices and Circuits, (2 July 1994); https://doi.org/10.1117/12.180996

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