Acceleration of electrons in the near field of lower hybrid frequency grills

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On Tore Supra, during lower hybrid (LH) current drive experiments, localized heat flux deposition is observed on plasma facing components such as the guard limiters of the LH grills or any object which is magnetically connected to the LH launching waveguides : modular low-field side limiters, ion cyclotron heating antennas, inner first wall. Similar observations have been made on the divertor plates and limiters of TdeV. In particular, by alternating the rf powers of the 2 grills of Tore Supra, it was shown that the heat flux on the tiles of the guard limiters is related to the local electric ... continued below

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6 p.

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Goniche, M.; Mailloux, J.; Demers, Y.; Jacquet, P.; Bibet, P.; Froissard, P. et al. September 1, 1996.

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Description

On Tore Supra, during lower hybrid (LH) current drive experiments, localized heat flux deposition is observed on plasma facing components such as the guard limiters of the LH grills or any object which is magnetically connected to the LH launching waveguides : modular low-field side limiters, ion cyclotron heating antennas, inner first wall. Similar observations have been made on the divertor plates and limiters of TdeV. In particular, by alternating the rf powers of the 2 grills of Tore Supra, it was shown that the heat flux on the tiles of the guard limiters is related to the local electric field but not with the convective power. We present here a model of acceleration of electrons in the near field of LH antennas. Results of this model are compared to experimental results.

Physical Description

6 p.

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INIS; OSTI as DE96015031

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  • 23. European Physical Society conference on controlled fusion and plasma physics, Kiev (Ukraine), 24-28 Jun 1996

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  • Other: DE96015031
  • Report No.: CONF-9606226--5
  • Grant Number: AC05-96OR22464
  • Office of Scientific & Technical Information Report Number: 390568
  • Archival Resource Key: ark:/67531/metadc685378

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  • September 1, 1996

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  • July 25, 2015, 2:20 a.m.

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  • Jan. 15, 2016, 12:33 p.m.

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Goniche, M.; Mailloux, J.; Demers, Y.; Jacquet, P.; Bibet, P.; Froissard, P. et al. Acceleration of electrons in the near field of lower hybrid frequency grills, article, September 1, 1996; Tennessee. (digital.library.unt.edu/ark:/67531/metadc685378/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.