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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 17, Iss. 8 — Apr. 15, 1978
  • pp: 1275–1279

Beam deviation method as a diagnostic tool for the plasma focus

H. Schmidt and B. Rückle  »View Author Affiliations


Applied Optics, Vol. 17, Issue 8, pp. 1275-1279 (1978)
http://dx.doi.org/10.1364/AO.17.001275


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Abstract

The application of an optical method for density measurements in cylindrical plasmas is described. The angular deviation of a probing light beam sent through a plasma is proportional to the maximum of the density in the plasma column. The deviation does not depend on the plasma dimensions; however, it is influenced to a certain degree by the density profile. The method is successfully applied to the investigation of a dense plasma focus with a time resolution of 2 nsec and a spatial resolution (in axial direction) of 2 mm.

© 1978 Optical Society of America

History
Original Manuscript: September 19, 1977
Published: April 15, 1978

Citation
H. Schmidt and B. Rückle, "Beam deviation method as a diagnostic tool for the plasma focus," Appl. Opt. 17, 1275-1279 (1978)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-17-8-1275


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References

  1. F. Keilmann, Plasma Phys. 14, 111 (1972). [CrossRef]
  2. M. Born, E. Wolf, Principles of Optics (Pergamon, New York, 1959).
  3. H. Salzmann, “On the Use of Schlieren Optics for Rotationally Symmetric High Density Gradient Plasmas,” Report LGI 68/25, Laboratori Gas Ionizzati, Frascati, Roma (1968).
  4. H. Wolter, “Schlieren-, Phasenkontrast- und Lichtschnittver-fahren,” in Handbuch der Physik, S. Flügge, Ed. (1956), Vol. 24. [CrossRef]
  5. H. Schmidt, B. Nahrath, B. Rückle, “Time and Space Resolved Measurements of Density and X-ray Emission of the NESSI Plasma Focus,”in Proceedings of Seventh European Conference on Controlled Fusion and Plasma Physics, Lausanne, September 1975, Vol. 1 (Centre de Recherches en Physique des Plasmas, Ecole Polytechnique Fédérate de Lausanne, Switzerland, 1975), p. 57.
  6. B. Rückle, “Elektronendichtemessungen am Plasmafokus,”Internal Report IPF 76-1, Institut für Plasmaforschung, Stuttgart (1976).
  7. G. Decker et al., “Dynamics of 120 and 20 kV Plasma Focus Devices with Respect to Density and Current Distribution, Neutron and X-ray Emission,”IAEA-CN-35/E18-1 (b)Berchtesgaden, October1976;Plasma Physics and Controlled Nuclear Fusion Research, Vol. 3 (IAEA, Vienna, 1977), p. 441.
  8. H. Schmidt, Plasma Phys., to be published.

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