A Theory of Anomalous Energy Flux and Deposition in a Laser Produced Plasma.
Abstract
If an unmagnetized plasma is collisionless, the heat flux is not equal to the thermal conduction coefficient times the temperature gradient. To study anomalous energy deposition in a collisionless plasma, the steady state fluid equations for the first four moments, density, velocity, temperature, and heat flux are examined. The fluid system is coupled to the system of equations for the unstable waves, and the interaction terms are written out as collision terms. The spatial dependence of fluid and wave quantities are solved numerically for the case where the anomalous absorption mechanism is the Compton sidescatter instability. Absorption efficiency can be as high as twenty percent, albeit for very long plasma lengths.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1975
- Accession Number
- ADA015309
Entities
People
- D. Colombant
- Robert Flynn
- Wallace M. Manheimer
Organizations
- United States Naval Research Laboratory