Specular reflections (“glint”) of the inner beams in a gas-filled cylindrical hohlraum

We report on the experimental measurement of specular reflection (“glint”) of laser beams off the hohlraum wall in inertial confinement fusion experiments at the National Ignition Facility. In a hohlraum, glinted light can escape the opposite laser entrance hole of the hohlraum and is a potential la...

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Bibliographic Details
Published in:Physics of plasmas 2022-09, Vol.29 (9)
Main Authors: Lemos, N., Farmer, W. A., Izumi, N., Chen, H., Kur, E., Pak, A., Pollock, B. B., Moody, J. D., Ross, J. S., Hinkel, D. E., Jones, O. S., Chapman, T., Meezan, N. B., Michel, P. A., Landen, O. L.
Format: Article
Language:English
Subjects:
Glint
Hohlraums
Ignition
Inertial confinement fusion
Laser beams
Plasma physics
Specular reflection
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Summary:We report on the experimental measurement of specular reflection (“glint”) of laser beams off the hohlraum wall in inertial confinement fusion experiments at the National Ignition Facility. In a hohlraum, glinted light can escape the opposite laser entrance hole of the hohlraum and is a potential laser energy loss mechanism. The total measured glint on the inner cones of beams is measured to be less than 8 TW (when using the full National Ignition Facility laser), which is 
ISSN:1070-664X
1089-7674
DOI:10.1063/5.0099937