TJ-II:Langmuir Probes

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

↑ M.A. Pedrosa et al, Fast movable remotely controlled Langmuir probe system, Rev. Sci. Instrum. 70 (1999) 415
↑ 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
↑ 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

[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

[1]

[2]

[3]

TJ-II:Langmuir Probes

References

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