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Spectral Analysis of X-Rays from Laser-Induced Plasmas†

Published online by Cambridge University Press:  06 March 2019

J. F. Cuderman  and
K. M. Glibert
J. F. Cuderman
Affiliation:
Sandia Laboratories, Albuquerque, New Mexico 87115
K. M. Glibert
Affiliation:
Sandia Laboratories, Albuquerque, New Mexico 87115
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Abstract

Laser interaction experiments have been conducted on Sandia Laboratories' four-beam laser system. In these experiments, pulses of 1.06 μm light of up to 50 J each were focused in a tetrahedral geometry onto CD2 microspheres. A 22-channel x-ray spectrometer which utilises silicon diodes with appropriate K-edge prefilters was used for x-ray measurements. Typically, bremsstrahlung-recombination spectra were observed in the photon regime below about 5 keV. The electron temperatures for this part of the spectrum ranged from a few hundred eV to 1 keV with up to 15 percent of the total laser energy converted to x-rays. Less than one percent of the total energy emitted as x-rays appeared in the spectral range above 5 keV.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 18: Twenty-Third Annual Conference on Applications of X-ray Analysis, August 7-9, 1974 , 1974 , pp. 159 - 168
Copyright
Copyright © International Centre for Diffraction Data 1974

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References

1. Stratton, T. S., Plasma Diagnostic Techniques, edited by Huddlestone and Leonard (Academic Press, New York, 1965).Google Scholar
2. Bogen, P., Plasma Diagnostics, edited by Lochte-Holtgreven (North Holland Publishing Co., Amsterdam 1968).Google Scholar
3. Johoda, F. C., Tittle, E. M., Quinn, W. E., Sawyer, G. A., and Stratton, T. F., Continuum Radiation in the X-ray and Visible Regions from a Magnetically Compressed Plasma (Scylla). Phys. Rev. 119, 843 (1960).Google Scholar
4. Beckner, E. H., Production and Diagnostic Measurements of Kilovolt High-Density Deuterium, Helium and Neon Plasmas, J. Appl. Phys. 37, 4944 (1966).Google Scholar
5. McWhirter, R. W. P., Plasma Diagnostic Techniques, edited by Huddlestone and Leonard (Academic Press, New York, 1965).Google Scholar
6. Freidberg, J, P., Mitchell, R. W., Morse, B. L. and Rudsinski, L. I., Resonant Absorption of Laser Light by Plasma Targets, Phys. Rev. Letters 28, 795 (1972).Google Scholar
7. Morse, R. L. and Nielson, C. W., Occurrence of High-Energy Electron and Surface Expansion in Laser Heated Target Plasmas, Phys. Fluids 16, 909 (1973).Google Scholar
8. DeGroot, J. S. and Katz, J. I., Anomalous Plasma Heating Induced “by a Very Strong High-Frequency Electric Field, Phys. Fluids 16, 401 (1973).Google Scholar
9.Quantrad Corporation, Los Angeles, CA, Model 100 PIN 250.Google Scholar
10.Ortec Inc., Oak Ridge, Tenn., Model CD-015-025-100.Google Scholar
11.Sandia Laboratories, Unfold Program SLAM.Google Scholar
12. Biggs, F. and Amos, D. E., Numerical Solutions of Integral Equations and Curve Fitting, SC-RR-71-0212 Sept. 19T1, Sandia Laboratories, Albuquerque, NM 87115Google Scholar
13. Halbleib, J, A., Theory and Application of the Generalized Spectra Code, SC-RR-70-251, April 1970, Sandia Laboratories, Albuquerque, NM87115Google Scholar
14. Brannon, P, J. et al., laser Plasma Studies with the Sandia Four-Beam System, VIII IQEC, San Francisco, June 10-13, 1974.Google Scholar
15. Jones, E. D. and Gobeli, G., Sandia Laser Development, CLEA Conference, June 1, 1973, Washington, D. C.Google Scholar