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Gomez, M. R.; Slutz, S. A.; Jennings, C. A.; Ampleford, D. J.; Weis, M. R.; Myers, C. E.; Yager-Elorriaga, D. A.; Hahn, K. D.; Hansen, S. B.; Harding, E. C.; Harvey-Thompson, A. J.; Lamppa, D. C.; Mangan, M.; Knapp, P. F.; Awe, T. J.; Chandler, G. A.; Cooper, G. W.; Fein, J. R.; Geissel, M.; Glinsky, M. E.; Lewis, W. E.; Ruiz, C. L.; Ruiz, D. E.; Savage, M. E.; Schmit, P. F.; Smith, I. C.; Styron, J. D.; Porter, J. L.; Jones, B.; Mattsson, T. R.; Peterson, K. J.; Rochau, G. A.; Sinars, D. B.
Physical review letters, 10/2020, Letnik: 125, Številka: 15Journal Article
We present experimental results from the first systematic study of performance scaling with drive parameters for a magnetoinertial fusion concept. In magnetized liner inertial fusion experiments, the burn-averaged ion temperature doubles to 3.1 keV and the primary deuterium-deuterium neutron yield increases by more than an order of magnitude to 1.1 × 1013 (2 kJ deuterium-tritium equivalent) through a simultaneous increase in the applied magnetic field (from 10.4 to 15.9 T), laser preheat energy (from 0.46 to 1.2 kJ), and current coupling (from 16 to 20 MA). Individual parametric scans of the initial magnetic field and laser preheat energy show the expected trends, demonstrating the importance of magnetic insulation and the impact of the Nernst effect for this concept. A drive-current scan shows that present experiments operate close to the point where implosion stability is a limiting factor in performance, demonstrating the need to raise fuel pressure as drive current is increased. Simulations that capture these experimental trends indicate that another order of magnitude increase in yield on the Z facility is possible with additional increases of input parameters.
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in: SICRIS
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