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Studies of the spatial and temporal evolution of a dense plasma focus in the X-ray region

Published online by Cambridge University Press:  09 March 2009

P. Choi ,
C. S. Wong  and
H. Herold
P. Choi
Affiliation:
The Blackett Laboratory, Imperial College, London SW7 2BZ, U.K.
C. S. Wong
Affiliation:
Institut fur Plasmaforschung, Universitaet Stuttgart, D7000 Stuttgart 80, F.R.G.
H. Herold
Affiliation:
Institut fur Plasmaforschung, Universitaet Stuttgart, D7000 Stuttgart 80, F.R.G.
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Abstract

The dynamics of the plasma evolution in a dense plasma focus has been studied using a streak camera system in the soft X-ray region. The experiments were performed on a medium energy plasma focus operating with a hydrogen-argon admixture. The streak camera system employed provides nanosecond resolution and allows the plasma to be viewed simultaneously through two different filters to achieve energy resolution. Observations are made in the radial direction and along the pinch axis. Collimated X-ray PIN diodes suitably filtered were used to provide additional information on the structure of the X-ray emitting regions of the plasma. The plasma focus is observed to be totally dynamical and continuously evolving in nanosecond time scale. Hot spots are observed to form among the moving plasma at various times. Such continuous nanosecond time scale evolution of the focus pinch in the X-ray region have not been reported previously.

Type
Research Article
Information
Laser and Particle Beams , Volume 7 , Issue 4 , November 1989 , pp. 763 - 772
Copyright
Copyright © Cambridge University Press 1989

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References

Anderson, O. A. et al. 1958 Phys. Rev. 110, 1375.Google Scholar
Bernstein, M. J. & Hai, F. 1970 Rev. Sci. Instrum., 41, 1843.CrossRefGoogle Scholar
Choi, P. & Favre, M. B. 1987 J. Phys. D, 20, 169.CrossRefGoogle Scholar
Choi, P. et al. 1987 Proc. 5th Int. Workshop on Plasma Focus and Z-pinch Research,Toledo, Spain, p. 76.Google Scholar
Choi, P. et al. 1988a Proc. Seventh Int. Conf. on High Power Particle Beams, p. 1187.Google Scholar
Choi, P., Deeney, C. & Wong, C. S. 1988b Phys. Lett. A, 128, 80.Google Scholar
Decker, G. et al. 1977 Plasma Physics and Controlled Nuclear Fusion Research, 1976, Nuclear Fusion Supplement. Vol III, p. 441.Google Scholar
Decker, G. et al. 1980 Plasma Phys. 22, 245.Google Scholar
Deeney, C. 1988 Ph.D. Thesis, University of London, England.Google Scholar
Denus, S. et al. 1983 Proc. 3rd Int. Workshop on Plasma Focus Research, p. 11.Google Scholar
Filippov, N. V. & Filippova, T. I. 1965 Plasma Physics and Controlled Nuclear Fusion Research, IAEA, Culham, England, translated by U.S. Atomic Energy Commission, 1966, p. 270.Google Scholar
Harries, W. L., Lee, J. H. & McFarland, D. R. 1978 Plasma Physics, 20, 963.CrossRefGoogle Scholar
Herold, H. et al. 1985 Plasma Physics and Controlled Nuclear Fusion Research, 1984, IAEA, London, UK.Vol II, p. 579.Google Scholar
Herold, H. et al. 1988 Plasma Physics and Controlled Nuclear Fusion Research, 1988, IAEA, Nice, France, paper IAEA-CN-47/4–5–3.Google Scholar
Hirano, K. et al. 1985 Plasma Physics and Controlled Nuclear Fusion Research, 1984, IAEA, London, UK.Vol II, p. 569.Google Scholar
Jerzykiewicz, A. et al. 1985 Plasma Physics and Controlled Nuclear Fusion Research, 1984, IAEA, London, UK. Vol II, p. 591.Google Scholar
Mather, J. W. 1971 Methods of Experimental Physics, Vol. 2, Plasma Physics, Part B, ed. Loveberg, R. H. and Griem, H. R., p. 187.Google Scholar
Noll, R. et al. 1984 Phys. Lett. Vol 101A, 86.Google Scholar
Oppenlander, T. 1981 Institut fur Plasmaforschung der Universitaet Stuttgart, Report IPF-81–2.Google Scholar
Pecorella, F. et al. 1977 Phys. Fluids 20, 675.Google Scholar
Schonbach, K. H., Michel, L. & Fischer, H. 1974 Appl. Phys. Lett. 25, 547.CrossRefGoogle Scholar
Wong, C. S., Choi, P. & Deeney, C. 1988 Rev. Sci. Instrm., 59, 391.CrossRefGoogle Scholar