Find the average effective cross section s for the reaction a + 1327Al -> p + 1430Si. It is known that when a thick aluminum target is irradiated with a-particles with an energy of 8 MeV, the proton yield is equal to h = 8•10-6. The path length of alpha particles in air is lв = 7.0 cm. The yield of a nuclear reaction is the ratio of the number of reaction events to the number of falling particles.

Detailed solution. Format gif