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@ARTICLE{Faley:840609,
      author       = {Faley, Michael and Kostyurina, E. A. and Kalashnikov, K. V.
                      and Maslennikov, Yu. V. and Koshelets, V. P. and
                      Dunin-Borkowski, Rafal},
      title        = {{S}uperconducting {Q}uantum {I}nterferometers for
                      {N}ondestructive {E}valuation},
      journal      = {Sensors},
      volume       = {17},
      number       = {12},
      issn         = {1424-8220},
      address      = {Basel},
      publisher    = {MDPI},
      reportid     = {FZJ-2017-08114},
      pages        = {2798},
      year         = {2017},
      abstract     = {We review stationary and mobile systems that are used for
                      the nondestructive evaluation of room temperature objects
                      and are based on superconducting quantum interference
                      devices (SQUIDs). The systems are optimized for samples
                      whose dimensions are between 10 micrometers and several
                      meters. Stray magnetic fields from small samples (10
                      µm–10 cm) are studied using a SQUID microscope equipped
                      with a magnetic flux antenna, which is fed through the walls
                      of liquid nitrogen cryostat and a hole in the SQUID’s
                      pick-up loop and returned sidewards from the SQUID back to
                      the sample. The SQUID microscope does not disturb the
                      magnetization of the sample during image recording due to
                      the decoupling of the magnetic flux antenna from the
                      modulation and feedback coil. For larger samples, we use a
                      hand-held mobile liquid nitrogen minicryostat with a first
                      order planar gradiometric SQUID sensor. Low-Tc DC SQUID
                      systems that are designed for NDE measurements of
                      bio-objects are able to operate with sufficient resolution
                      in a magnetically unshielded environment. High-Tc DC SQUID
                      magnetometers that are operated in a magnetic shield
                      demonstrate a magnetic field resolution of ~4 fT/√Hz at 77
                      K. This sensitivity is improved to ~2 fT/√Hz at 77 K by
                      using a soft magnetic flux antenna},
      cin          = {PGI-5},
      ddc          = {620},
      cid          = {I:(DE-Juel1)PGI-5-20110106},
      pnm          = {143 - Controlling Configuration-Based Phenomena (POF3-143)},
      pid          = {G:(DE-HGF)POF3-143},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000423285800098},
      doi          = {10.3390/s17122798},
      url          = {https://juser.fz-juelich.de/record/840609},
}