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X-ray fine structure of dense plasma in a co-axial accelerator

Published online by Cambridge University Press:  13 March 2009

W. H. Bostick ,
V. Nardi  and
W. Prior
W. H. Bostick
Affiliation:
Physics Department, Stevens Institure of Technology, Hoboken, New Jersey
V. Nardi
Affiliation:
Physics Department, Stevens Institure of Technology, Hoboken, New Jersey
W. Prior
Affiliation:
Physics Department, Stevens Institure of Technology, Hoboken, New Jersey
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Abstract

The intensity of X-ray sources in a focused deuterium plasma produced by a coaxial accelerator has been analysed as a function of position, X-ray energy and time of emission. The X-ray source in the axial region can be resolved (by micro- densitometer readings on X-ray pinhole camera films) as a sequence of small sources (linear dimension ∼ 0.1–0.3 mm) of hard radiation ≳ 2 ke V inside a more diffused source (cylindrical region of 1–4mm diameter) of softer X-rays. In each discharge the point sources are distributed for the most part in the general axial region of the discharge and two or more sources with different radial positions can be frequently observed for one specific value of the axial co-ordinate. Images of localized X-ray sources are also observed in the off-axis halo region. Multiple repinching of the axial plasma column or emission from metal-vapour clouds (by anode bombardment) can be ruled out in this experiment (hollow central electrode, or anode, radius 3·4 cm). The source multiplicity can be related to a complex (filamentary) structure of the plasma.

Type
Research Article
Information
Journal of Plasma Physics , Volume 8 , Issue 1 , August 1972 , pp. 7 - 20
Copyright
Copyright © Cambridge University Press 1972

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References

REFERENCES

Bernstein, M. J., Meskan, D.A. & Van Paassen, H. L. L. 1969 Phys. Fluids, 12, 2193.CrossRefGoogle Scholar
Bostick, W. H., Prior, W., Grunberger, L. & Emmert, G. 1966 Phys. Fluids, 9, 2078.CrossRefGoogle Scholar
Bostick, W. H., Grunberger, L., Nardi, V. & Prior, W. 1969 Proc. 9th Int. Conf. Ionized Gases, Bucharest (ed. Musa, et al.), p. 66.Google Scholar
Bostick, W. H., Grunberger, L., Nardi, V. & Prior, W. 1970a Proc. 4th Int. Conf. Thermophys. Properties, Newton, Mass. New York: American Association of Mechanical Engineering.Google Scholar
Bostick, W. H., Nardi, V., Grunberger, L. & Prior, W. 1970b Proc. I.A.U. Symp. 43, Solar Magnetic Field, Paris (ed. Howard, R.), p. 512. Reidel.Google Scholar
Bostick, W. H., Grunberger, L., Prior, W. & Nardi, V. 1970c Proc. 4th European Conf. Plasma Phys. and Nuclear Fusion, Rome, p. 108. C.N.E.N.Google Scholar
Bostick, W. H., Nardi, V., Grunberger, L. & Prior, W. 1971a Proc. 10th Int. Conf. Ionized Gases, Oxford, p. 237. Parsons.Google Scholar
Bostick, W. H., Nardi, V. & Prior, W. 1971b Proc. I.U.T.A.M. Symp. on Dynamics of Ionized Gases, Tokyo.Google Scholar
Bostick, W. H., Nardi, V. & Prior, W. 1971 c Proc. Int. Conf. on Cosmic Plasma Phys. Frascati, p. 175. Plenum.Google Scholar
Fadeev, V. M., Kvartskhava, I. F. & Komarov, N. N. 1965 Nuclear Fusion, 5, 202.CrossRefGoogle Scholar
Gratreau, P., Luzzi, G., Maisonnier, C., Pecorella, F., Rager, J. P., Robouch, B. V. & Samuelli, M. 1971 Proc. 4th Conf. Plasma Phys. and Controlled Nuclear Fusion Res. Madison, paper CN-28/D-1.Google Scholar
Grunberger, L. 1970 Ph.D. Thesis, Stevens Institute of Technology.Google Scholar
Komelkov, V. S., Skvorstsov, Y., Tereshenko, V. N. & Zerevitinov, S. S. 1961 Proc. 5th Int. Conf. Ionized Gases, Munich (ed. Maecker, ), p. 2191. North-Holland.Google Scholar
Kvartskhava, I. F., Kervalidze, K. N., Gvaladze, Y. S. & Zukakishvili, G. G. 1965 Nuclear Fusion, 5, 181.CrossRefGoogle Scholar
Lee, J. H., Loebbaka, D. S. & Ross, C. E. 1971 Plasma Phys. 13, 347.CrossRefGoogle Scholar
Mather, J. W. 1965 Phys. Fluids, 8, 366.CrossRefGoogle Scholar
Mather, J. W., Bottoms, P. J., Carpenter, J. P., Williams, A. H. & Ware, J. D. 1969 The Stability of the Dense Plasma Focus. Los Alamos Sci. Lab., University of California, Rep. LA.4088, TID-4500.Google Scholar
Meskan, D. A., Paassen, H. L. van & Comisar, G. G. 1967 Proc. A.P.S. Topical Conf. on Pulsed High-Density Plasma. Los Alamos Sci. Lab., University of California, Rep. LA-3770, TID-4500.Google Scholar
Nardi, V. 1970 a Proc. 4th European Conf. Plasma Phys. and Nuclear Fusion, Rome, p. 109. C.N.E.N.Google Scholar
Nardi, V. 1970b Phys. Rev. Lett. 25, 718.CrossRefGoogle Scholar
Peacock, N. J., Hobby, M. G. & Morgan, P. D. 1971 Proc. 4th Conf. Plasma Phys. and Controlled Nuclear Fusion Res., Madison, paper CN-28/D-3.Google Scholar