Approximate method for determining the momentum in a wedge-shaped notch with the instantaneous dispersion of a thin layer of matter from its surface

The article proposes a geometric method, based on the superposition of elementary momenta with the repeated reflection of particles scattered from the surface of the notch. The results of the calculation are in good agreement with experiment.Translated from Zhurnal Prikladnoi Mekhaniki i Tekhnicheskoi Fiziki, No. 5, pp. 159–163, September–October, 1974.