Publication Date:
2010-01-30
Description:
Indirect-drive hohlraum experiments at the National Ignition Facility have demonstrated symmetric capsule implosions at unprecedented laser drive energies of 0.7 megajoule. One hundred and ninety-two simultaneously fired laser beams heat ignition-emulate hohlraums to radiation temperatures of 3.3 million kelvin, compressing 1.8-millimeter-diameter capsules by the soft x-rays produced by the hohlraum. Self-generated plasma optics gratings on either end of the hohlraum tune the laser power distribution in the hohlraum, which produces a symmetric x-ray drive as inferred from the shape of the capsule self-emission. These experiments indicate that the conditions are suitable for compressing deuterium-tritium-filled capsules, with the goal of achieving burning fusion plasmas and energy gain in the laboratory.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Glenzer, S H -- MacGowan, B J -- Michel, P -- Meezan, N B -- Suter, L J -- Dixit, S N -- Kline, J L -- Kyrala, G A -- Bradley, D K -- Callahan, D A -- Dewald, E L -- Divol, L -- Dzenitis, E -- Edwards, M J -- Hamza, A V -- Haynam, C A -- Hinkel, D E -- Kalantar, D H -- Kilkenny, J D -- Landen, O L -- Lindl, J D -- LePape, S -- Moody, J D -- Nikroo, A -- Parham, T -- Schneider, M B -- Town, R P J -- Wegner, P -- Widmann, K -- Whitman, P -- Young, B K F -- Van Wonterghem, B -- Atherton, L J -- Moses, E I -- New York, N.Y. -- Science. 2010 Mar 5;327(5970):1228-31. doi: 10.1126/science.1185634. Epub 2010 Jan 28.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Lawrence Livermore National Laboratory, Post Office Box 808, Livermore, CA 94551, USA. glenzer1@llnl.gov〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/20110465" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
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Chemistry and Pharmacology
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Computer Science
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Medicine
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Natural Sciences in General
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Physics
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