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Delettrez, J. A.; Myatt, J.; Radha, P. B.; Stoeckl, C.; Meyerhofer, D. D.
32. EPS Conference on Plasma Physics. 8th International Workshop on Fast Ignition of Fusion Targets. 27 June-1 July, 2005. Tarragona. Spain2005
32. EPS Conference on Plasma Physics. 8th International Workshop on Fast Ignition of Fusion Targets. 27 June-1 July, 2005. Tarragona. Spain2005
AbstractAbstract
[en] Integrated fast-ignition experiments for the combined OMEGA/OMEGA EP laser systems have been simulated with the multidimensional hydrodynamic code DRACO. In the simplified electron transport model included in DRACO, the electrons are introduced at the pole of a 2-D simulation and transported in a straight line toward the target core, depositing their energy according to a recently published slowing-down formula.1 Simulations, including alpha transport, of an OMEGA cryogenic target designed to reach a 1-D fuel R of 500 mg/cm2 have been carried out for 1-D (clean) and, more realistic, 2-D (with nonuniformities) implosions to assess the sensitivity to energy, timing, and irradiance of the Gaussian fast-ignitor beam. The OMEGA laser system provides up to 30 kJ of compression energy, and OMEGA EP will provide two short pulse beams, each with energies up to 2.6 kJ. For the 1-D case, the neutron yield is predicted to be in excess of 1015 (compared to 1014 for no ignitor beam) over a timing range of about 80 ps. This talk will present these results and new 2-D simulation results that include the effects of realistic cryogenic target perturbations on the compressed core. This work was supported by the U.S. Department of Energy Office of Inertial Confinement Fusion under Cooperative Agreement No. DE-FC52-92SF19460, the University of Rochester, and the New York State Energy Research and Development Authority. The support of DOE does not constitute an endorsement by DOE of the views expressed in this article. (Author)
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128 p; 2005; p. 94; Editorial Ciemat; Madrid (Spain); 32. EPS Conference on Plasma Physics; Tarragona (Spain); 27 Jun - 1 Jul 2005; 8. International Workshop on Fast Ingnition of Fusion Targets; Tarragona (Spain); 27 Jun - 1 Jul 2005
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