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The internal propagation of fusion flame with the strong shock of a laser driven plasma b.ock for advanced nuclear fuel ignition

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Chinese Physics b 2013年第5期22卷 369-374页

作者： b. malekynia S. S. Razavipour Department of Physics Gachsaran BranchIslamic Azad University

An accelerated skin layer may b. used to ignite solid state fuels. Detailed analyses were clarified b. solving the hydrodynamic equations for nonlinear force driven plasma b.ock ignition. In this paper, the complementary mechanisms are included for the advanced fuel ignition： external factors such as lasers, compression, shock waves, and sparks. The other category is created within the plasma fusion as reheating of an alpha particle, the b.emsstrahlung ab.orption, expansion, conduction, and shock waves generated b. explosions. With the new condition for the control of shock waves, the spherical deuterium-tritium fuel density should b. increased to 75 times that of the solid state. The threshold ignition energy flux density for advanced fuel ignition may b. ob.ained using temperature equations, including the ones for the density profile ob.ained through the continuity equation and the expansion velocity for the r≠ 0 layers. These thresholds are significantly reduced in comparison with the ignition thresholds at x = 0 for solid advanced fuels. The quantum correction for the collision frequency is applied in the case of the delay in ion heating. Under the shock wave condition, the spherical proton- b.ron and proton-lithium fuel densities should b. increased to densities 120 and 180 times that of the solid state. These plasma compressions are achieved through a longer duration laser pulse or X-ray.

关键词： b.ock ignition advanced fuel quantum correction shock wave

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In depth fusion flame spreading with a deuterium-tritium plane fuel density profile for plasma b.ock ignition

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Chinese Physics b 2012年第12期21卷 317-321页

作者： b.malekynia S.S.Razavipour Department of Physics Gachsaran BranchIslamic Azad University

Solid-state fuel ignition was given b. Chu and b.b.n according to the hydrodynamic theory at x = 0 qualitatively. A high threshold energy flux density, i.e., E＊ = 4.3 × 10^12 J/m2, has b.en reached. Recently, fast ignition b. employing clean petawatt-picosecond laser pulses was performed. The anomalous phenomena were ob.erved to b. b.sed on suppression of prepulses. The accelerated plasma b.ock was used to ignite deuterium tritium fuel at solid-state density. The detailed analysis of the thermonuclear wave propagation was investigated. Also the fusion conditions at x ≠ 0 layers were clarified b. exactly solving hydrodynamic equations for plasma b.ock ignition. In this paper, the applied physical mechanisms are determined for nonlinear force laser driven plasma b.ocks, thermonuclear reaction, heat transfer, electro,ion equilib.ation, stopping power of alpha particles, b.emsstrahlung, expansion, density dependence, and fluid dynamics. New ignition conditions may b. ob.ained b. using temperature equations, including the density profile that is ob.ained b. the continuity equation and expansion velocity. The density is only a function of x and independent of time. The ignition energy flux density, Et＊, for the x ≠ 0 layers is 1.95 × 1012 J/m2. Thus threshold ignition energy in comparison with that at x =0 layers would b. reduced to less than 50 percent.

关键词： plasma b.ock solid-state fuel ignition expansion

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