Absence of Fast Electrons in Laser-Irradiated Gas-Jet Targets

The x-ray spectrum emitted by a gas jet irradiated at 10/sup 16/ W/cm/sup 2/ has been measured for laser wavelengths of 1.05 and 0.53 ..mu..m. The flux of hard x rays (h..nu..> or =10 keV) emitted by a gas jet is less than 0.3% of that emitted by a glass target irradiated at the same intensity. T...

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Veröffentlicht in:	Phys. Rev. Lett.; (United States) 1982-01, Vol.48 (4), p.256-260
Hauptverfasser:	Tarvin, J. A., Mayer, F. J., Slater, D. C., Busch, Gar. E., Charatis, G., Pattinson, T. R., Schroeder, R. J., Sullivan, D., Matthews, D. L.
Format:	Artikel
Sprache:	eng
Schlagworte:	70 PLASMA PHYSICS AND FUSION TECHNOLOGY 700208 - Fusion Power Plant Technology- Inertial Confinement Technology CORRELATIONS DATA ELECTROMAGNETIC RADIATION ELEMENTS EXPERIMENTAL DATA FLUIDS GASES GLASS HARD X RADIATION HEATING HYDROGEN INFORMATION IONIZING RADIATIONS JETS LASER RADIATION NITROGEN NONMETALS NUMERICAL DATA PHYSICAL RADIATION EFFECTS RADIATION EFFECTS RADIATION FLUX RADIATIONS TARGETS X RADIATION
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Zusammenfassung:	The x-ray spectrum emitted by a gas jet irradiated at 10/sup 16/ W/cm/sup 2/ has been measured for laser wavelengths of 1.05 and 0.53 ..mu..m. The flux of hard x rays (h..nu..> or =10 keV) emitted by a gas jet is less than 0.3% of that emitted by a glass target irradiated at the same intensity. This low flux implies that less than 0.1% of the incident energy is used to heat electrons to energies greater than 10 keV.
ISSN:	0031-9007
DOI:	10.1103/PhysRevLett.48.256