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@ARTICLE{Bikulov:1005770,
      author       = {Bikulov, Timur and Offenhäusser, Andreas and Krause,
                      Hans-Joachim},
      title        = {{P}assive mixer model for multi-contrast magnetic particle
                      spectroscopy},
      journal      = {International journal on magnetic particle imaging},
      volume       = {9},
      number       = {1},
      issn         = {2365-9033},
      address      = {Lübeck},
      publisher    = {Infinite Science Publishing},
      reportid     = {FZJ-2023-01623},
      pages        = {2303087},
      year         = {2023},
      abstract     = {For realizing multi-contrast MPI with different types of
                      SuperParamagnetic Nanoparticles (SPN), reconstruction of the
                      particles’ core diameter distribution is required for
                      various points in space. We propose a principle for
                      distinguishing signals from SPNs of different diameters,
                      which exploits the offset field concept already used in MPI.
                      We show that precise reconstruction of Magnetization Curve
                      (MC) is the key to precise reconstruction of core diameter
                      distribution, as all information about distribution is
                      stored in the curvature. A Passive Mixer Model is proposed
                      in order to uniquely relate the MC to the intermodulation
                      products in the magnetization spectra. The model does not
                      require small signal assumption and hence does not lose
                      accuracy in the reconstruction under large excitation
                      fields. We show that a number of useful practical
                      conclusions can be drawn from this model.},
      month         = {Mar},
      date          = {2023-03-22},
      organization  = {International Workshop on Magnetic
                       Particle Imaging, Aachen (Germany), 22
                       Mar 2023 - 24 Mar 2023},
      cin          = {IBI-3},
      ddc          = {500},
      cid          = {I:(DE-Juel1)IBI-3-20200312},
      pnm          = {5241 - Molecular Information Processing in Cellular Systems
                      (POF4-524)},
      pid          = {G:(DE-HGF)POF4-5241},
      typ          = {PUB:(DE-HGF)8 / PUB:(DE-HGF)16},
      doi          = {10.18416/ijmpi.2023.2303087},
      url          = {https://juser.fz-juelich.de/record/1005770},
}