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Summary of the first neutron image data collected at the National Ignition Facility

Author(s): Grim Gary P. | Archuleta Thomas N. | Aragonez Robert J. | Atkinson Dennis P. | Batha Steven H. | Barrios Maria A. | Bower Dan E. | Bradley David K. | Buckles Robert A. | Clark David D. | Clark Deborah J. | Cradick Jerry R. | Danly Chris | Drury Owen B. | Fatherley Valerie E. | Finch Joshua P. | Garcia Felix P. | Gallegos Robert A. | Guler Nevzat | Glenn Steven M. | Hsu Albert H. | Izumi Nobuhiko | Jaramillo Steven A. | Kyrala George A. | Pape Sebastien Le | Loomis Eric N. | Mares Danielle | Martinson Drew D. | Ma Tammy | Mackinnon Andrew J. | Merrill Frank E. | Morgan George L. | Munson Carter | Murphy Thomas J. | Polk Paul J. | Schmidt Derek W. | Tommasini Riccardo | Tregillis Ian L. | Valdez Adelaida C. | Volegov Petr L. | Wang Tai-Sen F. | Wilde Carl H. | Wilke Mark D. | Wilson Douglas C. | Dzenitis John M. | Felker Brian | Fittinghoff David N. | Frank Matthias | Liddick Sean N. | Moran Michael J. | Roberson George P. | Weiss Paul | Kauffman Morris I. | Lutz Steve S. | Malone Robert M. | Traille Albert

Journal: EPJ Web of Conferences
ISSN 2100-014X

Volume: 59;
Start page: 13017;
Date: 2013;
Original page

A summary of data and results from the first neutron images produced by the National Ignition Facility (NIF), Lawrence Livermore National Laboratory, Livermore, CA, USA are presented. An overview of the neutron imaging technique is presented, as well as a synopsis of data and measurements made to date. Data from directly driven, DT filled microballoons, as well as indirectly driven, cryogenically layered ignition experiments are presented. The data show that the primary cores from directly driven implosions are approximately twice as large, 64 ± 3 μm, as indirectly driven cores, 25 ± 4 and 29 ± 4 μm and more asymmetric, P2/P0 = 47% vs. − 14% and 7%. Further, comparison with the size and shape of X-ray image data on the same implosions show good agreement, indicating X-ray emission is dominated by the hot regions of the implosion.
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