A self-consistent model describing a microwave discharge with radial energy input is proposed to simulate electromagnetic field, radiative transfer, photoionization processes, plasma chemical reactions, heat transfer and hydrodynamics. The model is implemented for the case of discharges in neon and argon; the relevant kinetic data for these gases are collected and supplemented. Self-consistent simulation has shown that the electromagnetic field and the plasma configuration do not correspond to the widely used surface-wave approach.
Abstract. The present work is concerned with an experimental setup for studying phase objects using multi-directional speckle photography. A mathematical description of light propagation in an optically inhomogeneous medium and a means of speckle tomography of refractive coefficient distributions are given. Recommendations on two-dimensional refractive coefficient and temperature distributions in a flame of a candle illuminated in four directions are made. The obtained results evidence that speckle photography may be a basis for tomographic studies of temperature fields in different cross-sections of an object. A speckle shift error is about 5% while the one in reconstructing local temperatures does not exceed 10%.
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