Abstract
This paper aims to propose an equation for calculating the distribution of light scattered when a collimated beam is incident upon a spherical air bubble in water. As it neglects the attenuation factor G, the formula is much simpler than that of the Davis model. One application of the formula is providing a model using which one can computer generate the angular distribution of radiation scattered by air bubbles. During the research, a curve that models the angular distribution of the radiation scattered by a bubble is generated by use of a PC. The typical computations are for a bubble radius of R = 200??m andthe relative refractivity of water at 15??C of n = 1.33. It is found that the forward scattering effect is far greater than the backward scattering one. The conclusion is that as long as the bubble radius is much larger than the wavelength of light, the angular distribution of the scattered light is not influenced by the change of bubble radius. However, increase of the relative refractive index in the transmitting media weakens the forward scattering while it strengthens the backward scattering on the bubble surface.
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