Optimized SQUID sensors for low frequency measurements

Jari S. Penttilä, Leif Grönberg, Juha Hassel, Mikko Kiviranta

    Research output: Contribution to journalArticle in a proceedings journalScientificpeer-review

    6 Citations (Scopus)


    We have fabricated and measured optimized SQUID sensors (superconducting quantum interference device) for low frequency measurements of magnetic field. We have also investigated the dependence of flux trapping field on the position of Josephson junctions with respect to the Ketchen-type washer.
    The sensors are measured using direct room temperature readout utilizing noise cancellation techniques based on negative and positive feedback.
    A superconducting magnesium diboride can is used to shield the sample in pulse-tube cryocooler measurements.
    Original languageEnglish
    Article number052209
    JournalJournal of Physics: Conference Series
    Issue numberPart 5
    Publication statusPublished - 2009
    MoE publication typeA4 Article in a conference publication
    Event25th International Conference on Low Temperature Physics - Amsterdam, Netherlands
    Duration: 6 Aug 200913 Aug 2009


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