Experimental Demonstration of Fusion-Relevant Conditions in Magnetized Liner Inertial Fusion
Matthew R. Gomez,Stephen A. Slutz,Adam B Sefkow,Daniel Sinars,Kelly Hahn,Stephanie Hansen,Eric Harding,Patrick Knapp,Paul Schmit,Christopher Jennings,Thomas James Awe,M. Geissel,Dean C. Rovang,Gordon A. Chandler,Gary Wayne Cooper,Michael Edward Cuneo,A. J. Harvey-Thompson,Mark Herrmann,M. H. Hess,O. Johns,Derek C. Lamppa,Matthew Martin,Ryan D. McBride,Kyle Peterson,John L. Porter,G. K. Robertson,Gregory Rochau,Carlos L. Ruiz,Mark E. Savage,Ian C. Smith,William A. Stygar,Roger Alan Vesey +31 more
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This Letter presents results from the first fully integrated experiments testing the magnetized liner inertial fusion concept, indicating significant fuel magnetization given that the estimated radial areal density of the plasma is only 2 mg = cm(2).Abstract:
This Letter presents results from the first fully integrated experiments testing the magnetized liner inertial fusion concept [S. A. Slutz et al., Phys. Plasmas 17, 056303 (2010)], in which a cylinder of deuterium gas with a preimposed 10 Taxial magnetic field is heated by Z beamlet, a 2.5 kJ, 1 TW laser, and magnetically imploded by a 19 MA, 100 ns rise time current on the Z facility. Despite a predicted peak implosion velocity of only 70 km = s, the fuel reaches a stagnation temperature of approximately 3 keV, with T(e) ≈ T(i), and produces up to 2 x 10(12) thermonuclear deuterium-deuterium neutrons. X-ray emission indicates a hot fuel region with full width at half maximum ranging from 60 to 120 μm over a 6 mm height and lasting approximately 2 ns. Greater than 10(10) secondary deuterium-tritium neutrons were observed, indicating significant fuel magnetization given that the estimated radial areal density of the plasma is only 2 mg = cm(2).read more
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References
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Understanding fuel magnetization and mix using secondary nuclear reactions in magneto-inertial fusion.
Paul Schmit,Patrick Knapp,Stephanie Hansen,Matthew R. Gomez,Kelly Hahn,Daniel Sinars,Kyle Peterson,S. A. Slutz,Adam B Sefkow,Thomas James Awe,Eric Harding,Christopher Jennings,Gordon A. Chandler,Gary Wayne Cooper,M. E. Cuneo,M. Geissel,A. J. Harvey-Thompson,Mark Herrmann,M. H. Hess,O. Johns,Derek C. Lamppa,Matthew Martin,Ryan D. McBride,John L. Porter,G. K. Robertson,Gregory Rochau,Dean C. Rovang,Carlos L. Ruiz,Mark E. Savage,Ian C. Smith,William A. Stygar,Roger Alan Vesey +31 more
TL;DR: A method to diagnose fuel magnetization using the ratio of overall deuterium-tritium to deuterum-deuterium neutron yields is developed and is applied to recent MIF experiments, indicating that significant magnetic confinement of charged burn products was achieved and suggesting a relatively low-mix environment.
Proceedings ArticleDOI
Status of the Z pulsed power driver
Mark E. Savage,K. R. LeChien,M. R. Lopez,Brian Stoltzfus,William A. Stygar,D.S. Artery,J. A. Lott,P.A. Corcoran +7 more
TL;DR: The Z pulsed power driver at Sandia National Laboratories is used for a variety of high energy physics experiments as mentioned in this paper, which is a confluence of pulsed energy storage and switching technologies.
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