Journal of Low Temperature Physics

, Volume 93, Issue 3–4, pp 623–630 | Cite as

Signal to noise ratio of superconducting tunnel junction detectors

  • J. Jochum
  • H. Kraus
  • M. Gutsche
  • B. Kemmather
Superconducting Films And Tunnel Junction Detectors


The optimal signal to noise ratio for detectors based on superconducting tunnel junctions (STJ) is compared for the cases of a detector consisting of one single STJ, as well as of series and of parallel connections of STJs. A single STJ exhibits the best signal to noise ratio if the signal charge is independent of detector area. If signal charge increases in proprotion to the detector area, a parallel or a series connection of STJs would provide the optimum signal to noise ratio. The signal to noise ratio is deduced as function of junction parameters.

PACS numbers

29.40 29.60 06.70 


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Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • J. Jochum
    • 1
  • H. Kraus
    • 1
  • M. Gutsche
    • 1
  • B. Kemmather
    • 1
  1. 1.Physik Department E15Technische Universität MünchenGarchingGermany

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