Feasibility of alpha particle measurement by CO/sub 2/ laser Thomson scattering

Technical Report · Sat Dec 01 04:00:00 EST 1984

DOI:https://doi.org/10.2172/6234981· OSTI ID:6234981

Hutchinson, D. P.; Vander Sluis, K. L.; Sheffield, J.; Sigmar, D. J.

The feasibility of O/sub 2/ laser Thomson scattering from a multicomponent burning plasma has been evaluated for the measurement of the velocity distribution of D-T produced alpha particles. The density and velocity distribution of the alpha particles from their initial energy of 3.5 MeV down to near-thermal energies may be measured by small angle (<1/sup 0/) Thomson scattering. A computer simulation of the experiment indicates that a 100 MW pulsed laser combined with a bank of heterodyne receivers will be able to measure a scattered signal from the alpha particles with a post-detection signal-to-noise ratio of 75 for an assumed alpha density of 7.5 x 10/sup 11/ cm/sup -3/.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 6234981
• Report Number(s): ORNL/TM-9090; ON: DE85004938
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700102* -- Fusion Energy-- Plasma Research-- Diagnostics
ALPHA PARTICLES
CARBON DIOXIDE LASERS
CHARGED PARTICLES
COMPUTERIZED SIMULATION
DISTRIBUTION
FEASIBILITY STUDIES
GAS LASERS
INELASTIC SCATTERING
LASERS
PLASMA
PLASMA DIAGNOSTICS
SCATTERING
SIMULATION
THOMSON SCATTERING