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@ARTICLE{Choi:861668,
      author       = {Choi, Chang-Hoon and Hong, Suk-Min and Ha, YongHyun and
                      Shah, N. J.},
      title        = {{D}esign and construction of a novel 1 {H}/ 19 {F}
                      double-tuned coil system using {PIN}-diode switches at 9.4
                      {T}},
      journal      = {Journal of magnetic resonance},
      volume       = {279},
      issn         = {1090-7807},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2019-02105},
      pages        = {11 - 15},
      year         = {2017},
      abstract     = {A double-tuned 1H/19F coil using PIN-diode switches was
                      developed and its performance evaluated. The is a key
                      difference from the previous developments being that this
                      design used a PIN-diode switch in series with an
                      additionally inserted inductor in parallel to one of the
                      capacitors on the loop. The probe was adjusted to 19F when
                      the reverse bias voltage was applied (PIN-diode OFF), whilst
                      it was switched to 1H when forward current was flowing
                      (PIN-diode ON).S-parameters and Q-factors of single- and
                      double-tuned coils were examined and compared with/without a
                      phantom on the bench. Imaging experiments were carried out
                      on a 9.4 T preclinical scanner. All coils were tuned at
                      resonance frequencies and matched well. It is shown that the
                      Q-ratio and SNR of double-tuned coil at 19F frequency are
                      nearly as good as those of a single-tuned coil. Since the
                      operating frequency was tuned to 19F when the PIN-diodes
                      were turned off, losses due to PIN-diodes were substantially
                      lower resulting in the provision of excellent image quality
                      of X-nuclei.},
      cin          = {INM-4 / INM-11 / JARA-BRAIN},
      ddc          = {530},
      cid          = {I:(DE-Juel1)INM-4-20090406 / I:(DE-Juel1)INM-11-20170113 /
                      $I:(DE-82)080010_20140620$},
      pnm          = {573 - Neuroimaging (POF3-573)},
      pid          = {G:(DE-HGF)POF3-573},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {pmid:28411437},
      UT           = {WOS:000404322700002},
      doi          = {10.1016/j.jmr.2017.04.005},
      url          = {https://juser.fz-juelich.de/record/861668},
}