X-ray observations of a CO/sub 2/-laser-produced plasma

Journal Article · Mon Jul 01 04:00:00 EDT 1985 · Phys. Fluids; (United States)

OSTI ID:5639866

Meyer, J; Popil, R

The x-ray observations of a CO/sub 2/-laser-produced plasma are reported. An underdense plasma is produced by the interaction of intense < or =10/sup 14/ W/cm/sup 2/ CO/sub 2/ laser light with a laminar gas jet target. Initial observations at moderate <10/sup 13/ W/cm/sup 2/ intensities and low target density reveal an electron temperature scaling with laser intensity that is consistent with inverse bremsstrahlung absorption calculations. At higher intensities and target molecular density, a suprathermal electron temperature appears that is invariant with laser intensity. However, the variation of the detected x-ray signal with laser intensity can be correlated to the two-plasmon decay and stimulated Raman scattering instabilities that have been observed for this interaction.

• Research Organization: Physics Department, University of British Columbia, 6224 Agriculture Road, Vancouver, British Columbia, Canada V6T 2A6
• OSTI ID: 5639866
• Journal Information: Phys. Fluids; (United States), Journal Name: Phys. Fluids; (United States) Vol. 28:7; ISSN PFLDA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
BREMSSTRAHLUNG
CARBON DIOXIDE LASERS
ELECTROMAGNETIC RADIATION
ELECTRON TEMPERATURE
FLUID FLOW
GAS FLOW
GAS LASERS
IONIZING RADIATIONS
JETS
LASER-PRODUCED PLASMA
LASERS
PLASMA
PLASMA DIAGNOSTICS
RADIATIONS
TARGETS
VARIATIONS
X RADIATION