Laser scattering measurements of thermal ion-acoustic fluctuations in collisional plasmas

Journal Article · Mon Oct 15 04:00:00 EDT 1984 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.53.1563· OSTI ID:6187461

Mostovych, A N; DeSilva, A W

The thermal ion-acoustic fluctuation spectrum of a high-density, low-temperature (2 eV, 10/sup 17/ cm/sup -3/), collisional plasma was measured in a CO/sub 2/-laser scattering experiment. The measured spectra differed substantially from spectra observed in collisionless plasmas. Fluctuations at the ion-acoustic frequency were strongly enhanced and the width of the resonance was significantly narrowed in comparison to the collisionless case. The Bhatnagar-Gross-Krook theory proved most successful in describing the data.

• Research Organization: Laboratory for Plasma and Fusion Energy Studies, University of Maryland, College Park, Maryland 20742
• OSTI ID: 6187461
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 53:16; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
COLLISIONAL PLASMA
ELECTROMAGNETIC RADIATION
ION ACOUSTIC WAVES
ION WAVES
LASER RADIATION
LIGHT SCATTERING
PLASMA
PLASMA WAVES
RADIATIONS
SCATTERING