Abstract

A physical model and a method for solving the appropriate equations have been developed for the photodissociation of an optically dense medium in the presence of several cylindrical sources of radiation of finite length. The sources are symmetrically located with respect to the axis of the chamber containing the working material. The brightness temperatures and radiating surface areas of the sources can be time-varying. The cross section for photodissociation of the working material is an arbitrary function of frequency and time. The computations can provide for the case in which a filter, whose transmission coefficient can depend on the wavelength of the radiation in an arbitrary way, is placed between the sources and the working medium. A diffusely reflective chamber wall can also be considered. Results of calculations of the spatial distribution of active particles are presented for iodine laser-fusion amplifiers with a single source of radiation and with several different sources.

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