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DOE OSTI · 22093966

Shell trajectory measurements from direct-drive implosion experiments

Michel, D. T.·Sorce, C.·Epstein, R.·Whiting, N.·Igumenshchev, I. V.·Jungquist, R.·Froula, D. H.
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Abstract

A technique to measure the shell trajectory in direct-drive inertial confinement fusion implosions is presented. The x-ray self emission of the target is measured with an x-ray framing camera. Optimized filtering limits the x-ray emission from the corona plasma, isolating a sharp intensity gradient very near the ablation surface. This enables one to measure the radius of the imploding shell with an accuracy better than 1 {mu}m and to determine a 200-ps average velocity to better than 2%.

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46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGYABLATIONEMISSIONEXPLOSIONSIMPLOSIONSINERTIAL CONFINEMENTLASER RADIATIONLIGHT TRANSMISSIONPLASMAPLASMA DIAGNOSTICSX RADIATION

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Michel, D. T., Sorce, C., Epstein, R., Whiting, N., Igumenshchev, I. V., Jungquist, R., Froula, D. H.. 2012-10-15. Shell trajectory measurements from direct-drive implosion experiments. https://doi.org/10.1063/1.4732179

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