TJ-II:Electron Bernstein Wave Heating: Difference between revisions

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In TJ-II, the possibility of achieving high-density
In [[TJ-II]], the possibility of achieving high-density
plasmas using Electron Bernstein Wave Heating (EBWH),
plasmas using Electron Bernstein Wave Heating (EBWH),
which has been used successfully in the W7-AS and H-J
which has been used successfully in the W7-AS and H-J
stellarators, is being explored.
stellarators, is being explored.
<ref>[http://www.new.ans.org/store/j_572 A. Fernández et al., ''The design of an electron Bernstein wave heating system for the TJ-II stellarator,'' Fusion Sci. Tech. '''46''', pp. 335-341 (2004)]</ref>
<ref>A. Fernández et al., ''The design of an electron Bernstein wave heating system for the TJ-II stellarator,'' [http://www.new.ans.org/store/j_572 Fusion Sci. Tech. '''46''', pp. 335-341 (2004)]</ref>
<ref>[http://dx.doi.org/10.1016/j.fusengdes.2005.06.309 A. Fernández et al., Fusion Engineering and Design '''74''', Issues 1-4 (2005) 325-329 ]</ref>
<ref>A. Fernández et al., ''Status of the TJ-II Electron Bernstein Waves heating project'', [[doi:10.1016/j.fusengdes.2005.06.309|Fusion Engineering and Design '''74''', Issues 1-4 (2005) 325-329]]</ref>
It offers a way of
It offers a way of
overcoming the cut-off density limit associated with ECRH
overcoming the cut-off density limit associated with ECRH
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highlighted several promising EBWH first harmonic schemes,
highlighted several promising EBWH first harmonic schemes,
i.e. at 28 GHz.
i.e. at 28 GHz.
<ref>[http://www.new.ans.org/store/j_571 F. Castejón et al., ''Electron Bernstein wave heating calculations for TJII plasmas,'' Fusion Sci. Tech. '''46''', pp. 327-334 (2004)]</ref>
<ref>F. Castejón et al., ''Electron Bernstein wave heating calculations for TJII plasmas,'' [http://www.new.ans.org/store/j_571 Fusion Sci. Tech. '''46''', pp. 327-334 (2004)]</ref>
Results have also been reported.
<ref>J.B.O. Caughman, Á. Fernández, Á. Cappa, et al., ''Initial Electron Bernstein Wave Emission Measurements on the TJ-II Stellarator'', [[doi:10.13182/FST10-A9267|Fusion Sc. Technol. '''57''' (2010) 41]]</ref>
<ref>J.M. García-Regaña, Á. Cappa, F. Castejón, J.B.O. Caughman, M. Tereshchenko, A. Ros, D.A. Rasmussen and J.B. Wilgen, ''Electron Bernstein waves emission in the TJ-II stellarator'', [[doi:10.1088/0741-3335/53/6/065009|Plasma Phys. Control. Fusion '''53''' (2011) 065009]]</ref>


The system is located in [[TJ-II:Sectors|sector]] D6.
The system is located in [[TJ-II:Sectors|sector]] D6.
[[File:TJII EBW diagram.jpg|400px|thumb|left|TJ-II Electron Bernstein Wave Heating system diagram.]]
[[File:TJII EBW photo.jpg|400px|thumb|right|TJ-II Electron Bernstein Wave Heating system photo, as viewed from the mounting flange for the heating system corrugated waveguide.]]


==References==
==References==
<references />
<references />

Latest revision as of 07:28, 13 October 2018

In TJ-II, the possibility of achieving high-density plasmas using Electron Bernstein Wave Heating (EBWH), which has been used successfully in the W7-AS and H-J stellarators, is being explored. [1] [2] It offers a way of overcoming the cut-off density limit associated with ECRH methods (1.7×1019 m-3 in TJ-II). Preliminary studies highlighted several promising EBWH first harmonic schemes, i.e. at 28 GHz. [3] Results have also been reported. [4] [5]

The system is located in sector D6.

TJ-II Electron Bernstein Wave Heating system diagram.
TJ-II Electron Bernstein Wave Heating system photo, as viewed from the mounting flange for the heating system corrugated waveguide.

References

  1. A. Fernández et al., The design of an electron Bernstein wave heating system for the TJ-II stellarator, Fusion Sci. Tech. 46, pp. 335-341 (2004)
  2. A. Fernández et al., Status of the TJ-II Electron Bernstein Waves heating project, Fusion Engineering and Design 74, Issues 1-4 (2005) 325-329
  3. F. Castejón et al., Electron Bernstein wave heating calculations for TJII plasmas, Fusion Sci. Tech. 46, pp. 327-334 (2004)
  4. J.B.O. Caughman, Á. Fernández, Á. Cappa, et al., Initial Electron Bernstein Wave Emission Measurements on the TJ-II Stellarator, Fusion Sc. Technol. 57 (2010) 41
  5. J.M. García-Regaña, Á. Cappa, F. Castejón, J.B.O. Caughman, M. Tereshchenko, A. Ros, D.A. Rasmussen and J.B. Wilgen, Electron Bernstein waves emission in the TJ-II stellarator, Plasma Phys. Control. Fusion 53 (2011) 065009