Measurements of the effect of laser beam smoothing on direct-drive inertial-confinement-fusion capsule implosions
Physical Review Letters, ISSN: 0031-9007, Vol: 68, Issue: 18, Page: 2774-2777
1992
- 31Citations
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Article Description
We present measurements of the effect of various levels of laser beam smoothing on both burnthrough time and the neutron yield in layered, deuterium-filled imploding microballoons. Burnthrough times are found to improve as smoothing is increased. This effect is believed to result from a reduction in the seeding of the Rayleigh-Taylor (RT) instability with increasing smoothing. The results are in agreement with simulations that model the development of the RT instability from initial perturbation spectra inconsistent with measured changes in uniformity. The neutron yields are also observed to increase in the presence of smoothing, but are much less sensitive to uniformity changes than the burnthrough rates. © 1992 The American Physical Society.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=3743077858&origin=inward; http://dx.doi.org/10.1103/physrevlett.68.2774; http://www.ncbi.nlm.nih.gov/pubmed/10045489; https://link.aps.org/doi/10.1103/PhysRevLett.68.2774; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevLett.68.2774/fulltext; http://link.aps.org/article/10.1103/PhysRevLett.68.2774
American Physical Society (APS)
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