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@ARTICLE{Tokar:827858,
      author       = {Tokar, Mikhail},
      title        = {{M}odeling of localized impulsive injection of neutrals and
                      plasma response},
      journal      = {Plasma physics and controlled fusion},
      volume       = {59},
      number       = {5},
      issn         = {1361-6587},
      address      = {Bristol},
      publisher    = {IOP Publ.},
      reportid     = {FZJ-2017-01946},
      pages        = {055005},
      year         = {2017},
      abstract     = {Neutral particles of hydrogen isotopes, released locally
                      and impulsively into the plasma of fusion devices, can
                      significantly affect local plasma properties. A model,
                      allowing to describe self-consistently the spreading of
                      neutrals from the source and their effect on the local and
                      global plasma conditions is developed. It is based on the
                      separation on each flux surface of two zones, the 'cold'
                      cloud, comprising neutral molecules injected and atoms
                      generated in collisions of molecules with electrons and
                      ions, and the 'hot' environment affected by flows along the
                      magnetic field of newly produced charged particles outward
                      and heat conduction toward the cloud. Computations are done
                      for the conditions of laser induced desorption spectroscopy
                      applied in Ohmically heated plasmas in the TEXTOR tokamak
                      and foreseen for the ITER fusion reactor. In both cases the
                      local plasma state is strongly changed by the desorption
                      pulse, and this effect is increasing with the growing
                      isotope mass. As a result the total number of photons
                      emitted is reduced noticeably, up to 4 times in the case of
                      tritium injection in ITER, and the necessity to take into
                      account the plasma response by interpreting measurements is
                      demonstrated.},
      cin          = {IEK-4},
      ddc          = {530},
      cid          = {I:(DE-Juel1)IEK-4-20101013},
      pnm          = {174 - Plasma-Wall-Interaction (POF3-174)},
      pid          = {G:(DE-HGF)POF3-174},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000398755100001},
      doi          = {10.1088/1361-6587/aa6219},
      url          = {https://juser.fz-juelich.de/record/827858},
}