TJ-II:Langmuir Probes: Difference between revisions

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<ref>[http://dx.doi.org/10.1002/ctpp.200410104 E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>
<ref>[http://dx.doi.org/10.1002/ctpp.200410104 E. Calderón et al, ''On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes'', Contributions to Plasma Physics '''44''', Issue 7-8 (2004) 700 - 704]</ref>
<ref>[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003 M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>
<ref>[http://link.aps.org/doi/10.1103/PhysRevLett.100.215003 M.A. Pedrosa et al, ''Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator'', Phys. Rev. Lett. '''100''' (2008) 215003]</ref>
Probe 1 is located at &phi; = 305º ([[TJ-II:Sectors|sector]] D4) and probe 2 at &phi; = 105º ([[TJ-II:Sectors|sector]] B2).
Probe 1 is located at &phi; = 45&deg; ([[TJ-II:Sectors|sector]] D4) and probe 2 at &phi; = 285&deg; ([[TJ-II:Sectors|sector]] B2).


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

Revision as of 18:07, 3 November 2009

Location of the reciprocating Langmuir probes at TJ-II
Photo of a Langmuir probe head with three sets of measurement pins

TJ-II has two similar multi-Langmuir probes installed on fast reciprocating drives (with a velocity of approximately 1 m/s). [1] [2] [3] Probe 1 is located at φ = 45° (sector D4) and probe 2 at φ = 285° (sector B2).

References

  1. ↑ M.A. Pedrosa et al, Fast movable remotely controlled Langmuir probe system, Rev. Sci. Instrum. 70 (1999) 415
  2. ↑ E. Calderón et al, On the Influence of Probe Presheath on the Measurement of Fluctuation and E × B Turbulent Transport by Langmuir Probes, Contributions to Plasma Physics 44, Issue 7-8 (2004) 700 - 704
  3. ↑ M.A. Pedrosa et al, Evidence of Long-Distance Correlation of Fluctuations during Edge Transitions to Improved-Confinement Regimes in the TJ-II Stellarator, Phys. Rev. Lett. 100 (2008) 215003
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