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@ARTICLE{Allmendinger:838304,
      author       = {Allmendinger, Fabian and Blümler, Peter and Doll, Michael
                      and Grasdijk, Olivier and Heil, Werner and Jungmann, Klaus
                      and Karpuk, Sergej and Krause, Hans-Joachim and
                      Offenhäusser, Andreas and Repetto, Maricel and Schmidt,
                      Ulrich and Sobolev, Yuri and Tullney, Kathlynne and
                      Willmann, Lorenz and Zimmer, Stefan},
      title        = {{P}recise measurement of magnetic field gradients from free
                      spin precession signals of 3{H}e and 129{X}e magnetometers},
      journal      = {The European physical journal / D},
      volume       = {71},
      number       = {4},
      issn         = {1434-6079},
      address      = {Berlin},
      publisher    = {Springer},
      reportid     = {FZJ-2017-06946},
      pages        = {98},
      year         = {2017},
      abstract     = {We report on precise measurements of magnetic field
                      gradients extracted from transverse relaxation rates of
                      precessing spin samples. The experimental approach is based
                      on the free precession of gaseous, nuclear spin polarized
                      3He and 129Xe atoms in a spherical cell inside a magnetic
                      guiding field of about 400 nT using LTC SQUIDs as low-noise
                      magnetic flux detectors. The transverse relaxation rates of
                      both spin species are simultaneously monitored as magnetic
                      field gradients are varied. For transverse relaxation times
                      reaching 100 h, the residual longitudinal field gradient
                      across the spin sample could be deduced to be |∇Bz| = (5.6
                      ± 0.2) pT/cm. The method takes advantage of the high
                      signal-to-noise ratio with which the decaying spin
                      precession signal can be monitored that finally leads to the
                      exceptional accuracy to determine magnetic field gradients
                      at the sub pT/cm scale.},
      cin          = {ICS-8},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ICS-8-20110106},
      pnm          = {552 - Engineering Cell Function (POF3-552) / 553 - Physical
                      Basis of Diseases (POF3-553) / 523 - Controlling
                      Configuration-Based Phenomena (POF3-523)},
      pid          = {G:(DE-HGF)POF3-552 / G:(DE-HGF)POF3-553 /
                      G:(DE-HGF)POF3-523},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000403484500003},
      doi          = {10.1140/epjd/e2017-70505-4},
      url          = {https://juser.fz-juelich.de/record/838304},
}