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@ARTICLE{Jaspers:45676,
      author       = {Jaspers, R. and Elzendoorn, B. S. Q. and Donne, A. J. H.
                      and Soetens, T.},
      title        = {{S}pectra polarimetry of the motional stark effect at
                      {TEXTOR}-94},
      journal      = {Review of scientific instruments},
      volume       = {72},
      issn         = {0034-6748},
      address      = {[S.l.]},
      publisher    = {American Institute of Physics},
      reportid     = {PreJuSER-45676},
      pages        = {1018 - 1022},
      year         = {2001},
      note         = {Record converted from VDB: 12.11.2012},
      abstract     = {The Balmer-alpha light emitted by neutral particles
                      injected into tokamaks is polarized with respect to the
                      Lorentz electric field experienced by these atoms: E-l = nu
                      xB, known as the motional Stark effect (MSE). On TEXTOR-94 a
                      new MSE system is under development which exploits the full
                      spectral information, along with its polarization. The
                      advantages of exploiting the full spectral information are
                      obvious: beam velocity, observation volume, absolute value
                      of B, the plasma radial electric field and the beam density
                      can in principle all be extracted from the measurement,
                      whereas the polarization can be detected as several lines
                      simultaneously. The TEXTOR-94 MSE system consists of 30
                      radial channel, of which the full Balmer-alpha spectrum is
                      measured at two orthogonal angles. This is accomplished by
                      inserting a Glan-Laser prism in the optical path. All the
                      optics is located inside the vessel to improve the radial
                      resolution and minimize changes in polarization due to
                      optical elements. Fibers transfer the light by a vacuum
                      feedthrough towards a spectrometer. It is shown that the
                      measured spectra can be adequately fitted. The accuracy for
                      determining the safety factor q is estimated to be
                      $10\%-15\%$ and for the radial electric field to be 30 kV/m.
                      (C) 2001 American Institute of Physics.},
      keywords     = {J (WoSType)},
      cin          = {IPP},
      ddc          = {530},
      cid          = {I:(DE-Juel1)VDB181},
      pnm          = {TEC-FOM},
      pid          = {G:(DE-Juel1)FUEK201},
      shelfmark    = {Instruments $\&$ Instrumentation / Physics, Applied},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000166141600165},
      doi          = {10.1063/1.1319611},
      url          = {https://juser.fz-juelich.de/record/45676},
}