Radiation drive in laser‐heated hohlraums

Nearly 10 years of Nova [E. M. Campbell, Laser Part. Beams 9, 209 (1991)] experiments and analysis have lead to a relatively detailed quantitative and qualitative understanding of radiation drive in laser‐heated hohlraums. Our most successful quantitative modeling tool is two‐dimensional (2‐D) L A S...

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Published in:Physics of plasmas 1996-05, Vol.3 (5), p.2057-2062
Main Authors: Suter, L. J., Kauffman, R. L., Darrow, C. B., Hauer, A. A., Kornblum, H., Landen, O. L., Orzechowski, T. J., Phillion, D. W., Porter, J. L., Powers, L. V., Richard, A., Rosen, M. D., Thiessen, A. R., Wallace, R.
Format: Article
Language:English
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Summary:Nearly 10 years of Nova [E. M. Campbell, Laser Part. Beams 9, 209 (1991)] experiments and analysis have lead to a relatively detailed quantitative and qualitative understanding of radiation drive in laser‐heated hohlraums. Our most successful quantitative modeling tool is two‐dimensional (2‐D) L A S N E X numerical simulations [G. B. Zimmerman and W. L. Kruer, Comments Plasma Phys. Controlled Fusion 2, 51 (1975)]. Analysis of the simulations provides us with insight into the physics of hohlraum drive. In particular we find hohlraum radiation conversion efficiency becomes quite high with longer pulses as the accumulated, high‐Z blow‐off plasma begins to radiate. Extensive Nova experiments corroborate our quantitative and qualitative understanding.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.872002