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

Technical Report · Sat Dec 01 00:00:00 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. (ORNL), Oak Ridge, TN (United States)
• 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
PLASMA DIAGNOSTICS
ALPHA PARTICLES
THOMSON SCATTERING
CARBON DIOXIDE LASERS
COMPUTERIZED SIMULATION
DISTRIBUTION
FEASIBILITY STUDIES
PLASMA
CHARGED PARTICLES
GAS LASERS
INELASTIC SCATTERING
LASERS
SCATTERING
SIMULATION
700102* - Fusion Energy- Plasma Research- Diagnostics