Laser light scattering at the POSEIDON plasma focus device
Abstract
Thomson scattering measurements were performed at the POSEIDON plasma focus device. The angular distribution of the spectral integrated and the spectral resolved scattered light at one angle were observed simultaneously. Electron and ion temperature and electron density were determined. Nonthermal effects are found. One class of scattering spectrum can be fitted by theoretical curves according to the Salpeter approximation describing scattering in thermal plasmas. The other nonthermal spectra include k-spectra having only signals at small angles (k-type 1), k-spectra that can be fitted following the Salpeter theory but show enhanced scattering at small angles (k-type 2), and omega spectra with enhanced scattering near the ruby line.
- Publication:
-
Plasma Focus Research
- Pub Date:
- September 1983
- Bibcode:
- 1983pfr..work..123B
- Keywords:
-
- Laser Beams;
- Light Scattering;
- Plasma Focus;
- Ruby Lasers;
- Thomson Scattering;
- Angular Distribution;
- Electron Density Profiles;
- Electron Energy;
- Ion Temperature;
- Spectral Resolution;
- Plasma Physics