Onset Conditions for the Driven Lower Hybrid Drift Instability in an Expanding Magnetized Plasma
Abstract
Conditions for the turn on of short wavelength flute modes on plasmas expanding across an external magnetic field are discussed. The experimental data concerning scaling of the instability onset as a function of magnetic field are reviewed, followed by a similar review of numerical simulation results. Theoretical conditions for the appearance of the fast growing, short wavelength lower hybrid drift instability are derived. Overall, the experiments and simulations in which a scaling can be deduced suggest the turn-on of the instability is a strong function of the magnetic field. These results are discussed in relation to the NRL laser experiment, which in contrast exhibits little dependence of the instability onset on the applied field. Laser experiment, Early time structuring, Flute instabilities, Numerical simulations.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 24, 1989
- Accession Number
- ADA205505
Entities
People
- D. Winske
Organizations
- Los Alamos National Laboratory