Multichannel Thomson scattering apparatus

Technical Report · Fri Jul 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/7218340· OSTI ID:7218340

Bretz, N.; Dimock, D.; Foote, V.; Johnson, D.; Long, D.; Tolnas, E.

A Thomson scattering apparatus for measuring the electron temperature and density along a 90 cm diameter of the PLT plasma has been built. A wide angle objective images the 3 mm x 900 mm ruby laser beam onto an image dissector which rearranges the 300 : 1 image to 20 : 1 forming the input slit of a spectrometer. The stigmatic spectrometer provides 20 wavelength elements of approximately 70 A each. A micro-channel-plate image intensifier optically coupled to a cooled SIT tube provides detection with single frame linearity and 1000 : 1 dynamic range. Spatial profiles of N/sub e/ and T/sub e/ in the range 10/sup 13/ - 10/sup 14/ cm/sup -3/ and 0.05 - 3 keV have an accuracy of 30 ..sqrt..10/sup 13//N/sub e/ (cm/sup -3/) percent per 1.2 cm element.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: EY-76-C-02-3073
• OSTI ID: 7218340
• Report Number(s): PPPL-1356
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ELECTROMAGNETIC RADIATION
ELECTRON DENSITY
ELECTRON TEMPERATURE
ELECTRONIC EQUIPMENT
IMAGE INTENSIFIERS
INELASTIC SCATTERING
LASER RADIATION
MULTI-CHANNEL ANALYZERS
PLASMA DIAGNOSTICS
PLT REACTORS
PULSE ANALYZERS
RADIATIONS
SCATTERING
THERMONUCLEAR REACTORS
THOMSON SCATTERING
TOKAMAK TYPE REACTORS