Laser-driven hydrodynamic perturbation in an overdense Z-pinch plasma
Journal Article
·
· J. Appl. Phys.; (United States)
Holographic interferometry of the interaction of a radially incident intense CO/sub 2/ laser beam (10/sup 11/ W/cm/sup 2/, 38-nsec FWHM pulse) with an overdense helium Z-pinch plasma (n/sub e/>10/sup 19/ e/cm/sup 3/, T/sub e/approx.20 eV, L=100 ..mu..m) has indicated the presence of a laser-driven shock. The radial dimension of the shock was found to be similar to the electron thermal conduction length, several times larger than the focal-spot dimension. Density structure within the shock was inferred from holographic interferograms. Heuristic considerations of the shock density ratio, the front thickness, and the shock velocity allowed for an estimate of 50--80% energy absorption.
- Research Organization:
- Laser Plasma Interaction Laboratory, The University of Michigan, Ann Arbor, Michigan 48109
- OSTI ID:
- 6075737
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 50:4; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anomalous transmission of intense CO/sub 2/-laser radiation through an overdense plasma
Backscatter of CO/sub 2/ laser light from an overdense Z-pinch plasma
Critical layer penetration in a cold z-pinch plasma by high-intensity 10. 6 microns laser radiation
Journal Article
·
Sun Mar 05 23:00:00 EST 1978
· Phys. Rev. Lett.; (United States)
·
OSTI ID:5037230
Backscatter of CO/sub 2/ laser light from an overdense Z-pinch plasma
Journal Article
·
Wed Jan 14 23:00:00 EST 1981
· Appl. Phys. Lett.; (United States)
·
OSTI ID:6653386
Critical layer penetration in a cold z-pinch plasma by high-intensity 10. 6 microns laser radiation
Technical Report
·
Thu Sep 01 00:00:00 EDT 1977
·
OSTI ID:6618225