Design and realization of an optimal current sensitive CCC

Javier Sesé, Gert Rietveld, Agustin Camón, Conrado Rillo, Laura Vargas, G. Christian S. Brons, Martin G.H. Hiddink, Jaap Flokstra, Horst Rogalla, Wieslaw Jaszczuk, Horst Altenburg

    Research output: Contribution to journalArticleAcademicpeer-review

    7 Citations (Scopus)
    2 Downloads (Pure)


    The sensitivity of an overlapped tube cryogenic current comparator (CCC), coupled to a SQUID by means of a flux transformer, is calculated and compared with measurements. Conditions for optimal coupling between the CCC and the SQUID are derived. Based on these, an optimal CCC for precision measurements of very small currents in the nanoampere range has been designed. The paper describes the construction and testing of some parts of the system. An essential element is a home-made dc SQUID with low current noise and low inductance input coil equal to that of the CCC overlapped shield, which we use as sensing coil.
    Original languageEnglish
    Pages (from-to)370-374
    Number of pages5
    JournalIEEE transactions on instrumentation and measurement
    Issue number2
    Publication statusPublished - 1999


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