Design and fabrication of multichannel DC SQUIDs for biomagnetic applications

Author

Yamasaki, S. ; Morooka, T. ; Matsuda, N. ; Kawai, J. ; Mizutani, N. ; Tsukada, K. ; Uehara, G. ; Kado, H.

Author_Institution

Superconducting Sensor Lab., Chiba, Japan

Volume

3

Issue

1

fYear

1993

fDate

3/1/1993 12:00:00 AM

Firstpage

1887

Lastpage

1889

Abstract

A hybrid DC superconducting quantum interference device (SQUID) system is developed for biomagnetic applications. It consists of a high-performance square-shaped double-washer DC SQUID and a highly accurate planar pick-up coil. The DC SQUID device and the pick-up coil are designed and fabricated separately. Coupling this device and the separately fabricated pick-up coil allows flexibility in the construction of multichannel systems as well as sensitivity and stability.<>

Keywords

SQUIDs; biomagnetism; biomedical equipment; biomedical measurement; magnetometers; I-V characteristics; Josephson tunnel junction; Nb-AlO/sub x/-Nb trilayer; biomagnetic applications; gradiometer; hybrid DC superconducting quantum interference device; multichannel DC SQUIDs; planar pick-up coil; sensitivity; square-shaped double-washer DC SQUID; stability; Biomagnetics; Biosensors; Damping; Fabrication; Inductance; Laboratories; Magnetic field measurement; SQUIDs; Sputtering; Superconducting coils;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/77.233312

Filename

233312