نتایج جستجو برای: optimum energy density
تعداد نتایج: 1074233 فیلتر نتایج به سال:
The present paper deals with a model for obtaining the optimum performance conditions for the KrF laser. The model is based on the dominant formation, quenching and absorption processes. For a given excitation density the analysis predicts the maximum photon density rate that can be extracted from the cavity together with the corresponding optimum argon and krypton densities as a function of th...
The discharge quality and optimum pump parameters of a long-pulse high-pressure gas discharge excited KrCl laser are investigated. A three-electrode prepulse–mainpulse excitation circuit is employed as pump source. The discharge volume contains a gas mixture of HCl/Kr/Ne operated at a total pressure of up to 5 bar. For a plane–plane resonator, the divergence of both output laser beams is measur...
Optical model potentials for elastic nucleon nucleus scattering are calculated for a number of target nuclides from a full-folding integral of two different realistic target density matrices together with full off-shell nucleonnucleon t-matrices derived from two different Bonn meson exchange models. Elastic proton and neutron scattering observables calculated from these full-folding optical pot...
Based on molecular dynamics simulation results, a model was developed for determining elastic properties of aluminum nanocomposites reinforced with silicon carbide particles. Also, two models for prediction of density and price of nanocomposites were suggested. Then, optimal volume fraction of reinforcement was obtained by genetic algorithm method for the least density and price, and the highes...
Laser energy absorption to fast electrons during the interaction of an ultraintense (10 W cm), picosecond laser pulse with a solid is investigated, experimentally and numerically, as a function of the plasma density scale length at the irradiated surface. It is shown that there is an optimum density gradient for efficient energy coupling to electrons and that this arises due to strong selffocus...
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