Abstract
Focussing effect of YBa2Cu3O7−y large washer SQUID and flux shielding plates were studied. Optimizing the hole size of the shielding plates, the flux capture area was improved up to 60% of the theoretical value. The field resolution was 370fT/Hz1/2 at 10Hz. We have developed a 16-channel high-Tc SQUID magnetometer system, and demonstrated that the 16 channel magnetocardiogram can be obtained. The devices used in this system were sealed by epoxy resin; there were no significant degradation of the SQUID performances after the heat cycles (room temperature to 77K) of 50 times.
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© 1994 Springer-Verlag Tokyo
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Tanaka, S. et al. (1994). Large Washer SQUID. In: Fujita, T., Shiohara, Y. (eds) Advances in Superconductivity VI. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68266-0_253
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DOI: https://doi.org/10.1007/978-4-431-68266-0_253
Publisher Name: Springer, Tokyo
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