8th International Conference on Inertial Fusion Sciences and Applications | |
High efficient ultrahigh acceleration of plasma blocks by PW-ps laser pulses for producing fusion flames in DT and HB11 of solid state density | |
Moustaizis, S.^1 ; Lalousis, P.^2 ; Hora, H.^3 ; Miley, G.H.^4 | |
Technical University of Crete, Science Department, Chania, Greece^1 | |
Institute of Electron Structure and Lasers FORTH, Heraklion, Greece^2 | |
Department of Theoretical Physics, University of New South Wales, Australia^3 | |
Dept. Nuclear, Plasma and Radiol.Engineering, Univ. Illinois, Urbana | |
IL, United States^4 | |
关键词: Deuterium-tritium; Direct conversion; Nanosecond range; Nonlinear (ponderomotive) force; Pulsed magnetic fields; Solid-state density; Thermal process; Ultra-high accelerations; | |
Others : https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012074/pdf DOI : 10.1088/1742-6596/688/1/012074 |
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来源: IOP | |
【 摘 要 】
Ultrahigh acceleration of plasma blocks in the range of 1020cm/s2has been confirmed experimentally after this was long predicted as a non-thermal direct conversion of optical energy into plasma motion due to dominating nonlinear (ponderomotive) forces [1]. The use of laser pulses of more than PW power and ps or shorter duration can ignite a nuclear fusion flame in solid density deuterium tritium because the necessary energy flux of >108J/cm2according to the theory of Chu [2] is available [3]. For the studies of the necessary velocities of the generated fusion flames above 1000 km/s the detailed processes can be analyzed by using the advanced genuine two-fluid hydrodynamic model [4] where it was surprising that the ignition of the fusion flame by the picosecond interaction needs a comparably long development in the nanosecond range before the thermal processes result in shock fronts similar to the Rakine-Hugoniot theory. For the evaluation of power generation the problem of lateral energy losses was studied by using very high pulsed magnetic fields. The recently produced 10 Kilotesla magnetic fields [5] are very promising for solutions.
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High efficient ultrahigh acceleration of plasma blocks by PW-ps laser pulses for producing fusion flames in DT and HB11 of solid state density | 607KB | download |