LIMITING CHARACTERISTICS OF A SUPERCONDUCTING QUANTUM INTERFEROMETER - 2. SIGNAL-TO-NOISE RATIO.

E. I. Butikov, S. P. Feofilov

Research output

Abstract

In the approximation of small fluctuations, the spectral density of intrinsic thermal noise limiting the maximal sensitivity of a constant-current SQUID is found in the low-frequency region. The dependence of the signal-to-noise ratio on the SQUID parameters and operating conditions of an interferometer with low-frequency magnetic flux modulation is studied. Estimates are presented for the smallest detectable magnetic flux corrsponding to optimal operating conditions of a SQUID.

Original languageEnglish
Pages (from-to)1403-1407
Number of pages5
JournalSoviet physics. Technical physics
Volume25
Issue number11
Publication statusPublished - 1 Jan 1980

    Fingerprint

Scopus subject areas

  • Environmental Science(all)
  • Engineering(all)
  • Earth and Planetary Sciences(all)

Cite this