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A series of pulsed power driven recent Kr gas-puff experiments on the Sandia National Laboratories Z machine have produced intense X-rays in the multi-keV photon energy range. Krypton spectra from Z pinch implosions can be used to analyze the presence and dynamics of the emitting regions, which could dominate the Kr K- and L-shell yields. This theoretical investigation of highly charged high atomic...
A number of shots employing concentric gas puffs of Ar and Kr on the Sandia National Laboratories ZR accelerator are being planned; with the goal of optimizing K-shell yield. Experimental data from these implosions can provide a wealth of information about the pinch dynamics and ionization history of the plasma. Theoretical simulations using accurate atomic and hydrodynamics models will provide synthetic...
An analytical model for deep submicron MOSFETs based on quantum charge-sheet approximation including the drift-diffusion equation is presented. In this model the surface potential is obtained analytically considering quantum mechanical effects in the inversion region. The field dependent mobility variations, velocity saturation of carriers and secondary effects such as DIBL and channel length modulation...
We have developed a collisional-radiative spectroscopic model that combines the completeness of highly averaged Rydberg states models with the accuracy of detailed models for all important excited states. Our model includes an abundance of levels and atomic structure data as well as collisional and radiative processes including excitation, ionization, and recombination level couplings. This approach...
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