Effects of magnetization on fusion product trapping and secondary neutron spectra

• DOI: 10.1063/1.4920948
• Publication Date: 2015-05-15T00:30:13Z
• Authors: P. F. Knapp; P. F. Schmit; S. B. Hansen; M. R. Gomez; K. D. Hahn; D. B. Sinars; K. J. Peterson; S. A. Slutz; A. B. Sefkow; T. J. Awe; E. Harding; C. A. Jennings; M. P. Desjarlais; G. A. Chandler; G. W. Cooper; M. E. Cuneo; M. Geissel; A. J. Harvey-Thom...; J. L. Porter; G. A. Rochau; D. C. Rovang; C. L. Ruiz; M. E. Savage; I. C. Smith; W. A. Stygar; M. C. Herrmann
• Keywords: Fusion power

By magnetizing the fusion fuel in inertial confinement (ICF) systems, required stagnation pressure and density can be relaxed dramatically. This happens because magnetic field insulates hot from cold pusher traps charged burn products. trapping allows products to deposit their energy fuel, facilitating plasma self-heating. Here, we report on a comprehensive theory of this cylindrical DD magnetized with purely axial field. Using theory, are able show that secondary reactions used infer field-radius product, BR, during burn. parameter, not ρR, is primary parameter ICF. method, analyze data recent Magnetized Liner Inertial Fusion experiments conducted Z machine at Sandia National Laboratories. We these BR ≈ 0.34(+0.14/−0.06) MG · cm, ∼ 14× increase initial value, confirming DD-fusion tritons stagnation. first experimental verification product magnetization facilitated by compression an seed flux.