A 19-channel d.c. SQUID magnetometer system for brain research

Jakob Flokstra, H.J.M. ter Brake, E.P. Houwman, D. Veldhuis, W. Jaszczuk, M. Caspari, H. Rogalla, A. Martinez, C. Rillo

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
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Abstract

A 19-channel d.c. SQUID magnetometer system for neuromagnetic investigations is under constuction. The first-order gradiometers for sensing the signal are placed in a hexagonal configuration. D.c. SQUIDs based on niobium/aluminium technology have been developed, leading to a field sensitivity of about 5 fT/ Hz. SQUID read-out is realized with a resonant transformer circuit at 100 kHz. The multichannel control and detection electronics are compactly built.
Original languageEnglish
Pages (from-to)781-785
Number of pages5
JournalSensors and Actuators A: Physical
Volume27
Issue number1-3
DOIs
Publication statusPublished - 1991

Keywords

  • METIS-129146
  • IR-72994

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