Skip to main content
SpringerLink
Log in

Design and Fabrication of Comparative Langmuir Ball-Pen Probe (LBP) for the Tokamak

  • Original Research
  • Published:
Journal of Fusion Energy Aims and scope Submit manuscript

Abstract

The first results of design and fabrication of comparative Langmuir Ball-Pen probe (LBP) for the IR-T1 tokamak were presented. Conventional Langmuir probe can’t measure the plasma potential precisely (due to temperature fluctuations). Therefore we used LBP for direct measurement of the plasma potential. First measurements show that the probe allows a modification of its collected electron and ion saturation currents. Regarding to the results, the ratio of R (up to down ion saturation currents) is close to one at a certain collector position (h = −0.7 mm). In this situation, the floating potential is very close to the plasma potential. Temporal and radial evolutions of plasma potential have been investigated and analyzed.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

  1. I. H. Hutchinson, Cambridge Univ. Press, 2nd edition, 2002

  2. J. Adámek et al., Czech J. Phys. 54, 95–99 (2004)

    Article  Google Scholar 

  3. G. Van Oost, J. Trans Fusion Sci Technol 53, 387–397 (2008)

    Google Scholar 

  4. R. Schrittwieser et al., Plasma Phys. Control. Fusion 44, 567 (2002)

    Article  ADS  Google Scholar 

  5. J. Adamek et al., Czech J. Phys. 55, 235 (2005)

    Article  ADS  Google Scholar 

  6. J. Adamek et al., Contrib. Plasma Phys. 50, 9 (2010)

    Article  Google Scholar 

  7. J. Horacek et al., Nucl. Fusion 50, 105001 (2010)

    Article  ADS  Google Scholar 

  8. H.W. Muller et al., Nucl. Fusion 51, 073023 (2011)

    Article  ADS  Google Scholar 

  9. C. Silva et al., 40th EPS conference on plasma physics, Espoo, Finland P5.103, (2013)

  10. J. Adamek et al., Contrib. Plasma Phys. 54(3), 279–284 (2014)

    Article  ADS  Google Scholar 

  11. I. Katsumata et al., Japan. J. Appl. Phys. 6, 123–124 (1967)

    Article  Google Scholar 

  12. Adámek J. et al., 32nd EPS conference on plasma physics and controlled fusion, Tarragona, P5_081 (2005)

Download references

Author information

Authors and Affiliations

  1. Plasma Physics Research Center, Science and Research Branch, Islamic Azad University, Tehran, Iran

    S. Meshkani, M. Ghoranneviss, A. Salar Elahi & M. Lafouti

Authors
  1. S. Meshkani
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. M. Ghoranneviss
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. A. Salar Elahi
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. M. Lafouti
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to A. Salar Elahi.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Meshkani, S., Ghoranneviss, M., Salar Elahi, A. et al. Design and Fabrication of Comparative Langmuir Ball-Pen Probe (LBP) for the Tokamak. J Fusion Energ 34, 394–397 (2015). https://doi.org/10.1007/s10894-014-9811-5

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10894-014-9811-5

Keywords

Search

Navigation