Spherical irradiation of targets by high-power laser beams

The principles are given of the design of optical systems to be used in spherically symmetric laser irradiation of small targets. Calculations are made of the illumination of the surface of a spherical target irradiated with six and nine Gaussian beams. An analysis is made of the influence of the positions and parameters of laser beams on the characteristics of irradiation. A discussion is given of methods for further improvement of the uniformity of target illumination.