Question

A 53 kiloton atomic bomb is fueled with pure ²³⁵U, 4.0% of which actually undergoes fission. (a) What is the mass of uranium in the bomb? (It is not 53 kilotons - that is the amount of released energy specified in terms of the mass of TNT required to produce the same amount of energy.) (b) How many primary fission fragments are produced? (c) How many neutrons generated in the fissions are released to the environment? (On average, each fission produces 2.5 neutrons. Assume 2 neutrons per fission create further fissions.) 1 megaton of TNT produces 2.6 × 10²⁸ MeV of energy. Assume each fission event releases 200 MeV of energy.

Answer 1