OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 13, Iss. 5 — May. 1, 1974
  • pp: 1134–1140

Proposed Method of Measuring the Current Distribution in a Tokamak Plasma

Norton Bretz  »View Author Affiliations


Applied Optics, Vol. 13, Issue 5, pp. 1134-1140 (1974)
http://dx.doi.org/10.1364/AO.13.001134


View Full Text Article

Enhanced HTML    Acrobat PDF (777 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

It is shown that the current distribution in a typical Tokamak plasma can be measured by a light scattering technique. The direction of the total magnetic field is measured accurately enough that the magnitude of the small poloidal component can be found. The field direction is measured by observing the scattered frequency spectrum of CO2 laser light. The usual Gaussian spectrum becomes modulated at the electron cyclotron frequency when the difference between the incident and scattered wave vectors is nearly perpendicular to the magnetic field. The harmonics can be superimposed with a Fabry-Perot interferometer and their collective width resolved as the scattering direction is changed. The SNR is high only when the detector is shielded against background radiation.

© 1974 Optical Society of America

History
Original Manuscript: September 26, 1973
Published: May 1, 1974

Citation
Norton Bretz, "Proposed Method of Measuring the Current Distribution in a Tokamak Plasma," Appl. Opt. 13, 1134-1140 (1974)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-13-5-1134


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. F. W. Perkins, Bull. Am. Phys. Soc. 11, 1418 (1970); also Princeton Plasma Physics Laboratory MATT-818.
  2. R. Cano, I. Fidone, M. J. Schwartz, Phys. Rev. Lett. 27, 783 (1971). [CrossRef]
  3. R. Cano, C. Etievant, J. Hosea, Phys. Rev. Lett. 29, 1302 (1972). [CrossRef]
  4. F. C. Jobes, R. L. Hickok, Nucl. Fusion 10, 195 (1970). [CrossRef]
  5. M. Murakami, J. F. Clarke, G. G. Kelley, M. Lubin, Bull. Am. Phys. Soc. 11, 1411 (1970); also Oak Ridge National Laboratory ORNL-TM-3093.
  6. J. Sheffield, Plasma Phys. 14, 385 (1972). [CrossRef]
  7. D. Dimock et al., Plasma Physics and Controlled Nuclear Fusion Research (International Atomic Energy Agency, Vienna, 1971), Vol. 1, p. 451.
  8. T. Laaspeere, J. Geophys. Res. 65, 3955 (1960). [CrossRef]
  9. D. E. Evans, P. Carolan, Phys. Rev. Lett. 25, 1605 (1970). [CrossRef]
  10. L. Kellerer, in 4th European Conference on Controlled Fusion and Plasma Physics (Comitata Nazionale per l’Energia Nucleare, Rome, 1970), p. 125.
  11. Lumonics Research Ltd., Ottawa, Ont.
  12. Santa Barbara Research Center, Goleta, California.
  13. D. W. Kruse, L. D. Mc Glauchlin, R. B. Mc Quistan, Elements of Infrared Technology (Wiley, New York, 1962), p. 365.
  14. K. Chen, Ph.D. Thesis, Massachusetts Institute of Technology (1972).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited