Application of Thomson Scattering System at 1.06 {mu}m for Study of Plasma Density Dynamics at Multimirror Trap GOL-3
Journal Article
·
· Fusion Science and Technology
OSTI ID:20849813
Thomson scattering system for measurements of radial profile of plasma density (range 0.5-5x10{sup 21} m{sup -3}) with temperature up to 2 keV was developed at the GOL-3 facility. First harmonics ({lambda}=1.06 {mu}m) of Nd glass laser is used. Scattered light from different points of plasma cross-section is imaged to a set of quartz optical fibers and detected by avalanche photodiodes.During the first 10 {mu}s after start of the relativistic electron beam injection the intense light emission from plasma is observed. Single powerful laser pulse is used for providing of good signal-noise ratio in this period. Later the plasma radiation intensity decreases and the less powerful laser oscillator operated in multiple-pulsed regime is used.Description of the diagnostics, methodical aspects of operation, and results of the density dynamics measurements are presented in the paper.
- OSTI ID:
- 20849813
- Journal Information:
- Fusion Science and Technology, Journal Name: Fusion Science and Technology Journal Issue: 1T Vol. 47; ISSN 1536-1055
- Country of Publication:
- United States
- Language:
- English
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