Question

Nuclear fision and fuscon Kripton barium) LDefore esanple how final Nuclenx Co Critu ot tatentag how many Stateriny uhut & genen name this two erent hentrn slide sample Define Cros sectien comporitim Sratteriay radeatan physes. lelastit and inelasti -defne )-put equativn for coss sectiun

Answer 1

Nuclear fission and Nuclear fusion are opposite to each other. Nuclear fission is a process in which a heavy nucleus splits into two lighter nuclei. But nuclear fusion is the process in which two lighter nuclei combine to form a heavy stable nucleus .

The final products krypton and barium are produced by the neutron induced fission of uranium-235.

I.e. ²³⁵U + n -------->. ¹⁴¹Ba + ⁹²kr + 3n + energy

Generally cross section represents the probability . In neutron slide experiment cross section refers to the probability of interaction of the incoming neutron with the target nucleus. It represents the extent to which the neutron interacts with the nucleus.

Neutron scattering are mainly of two types

1. Elastic

2. Inelastic

In inelastic scattering , some energy of the incoming neutron is absorbed by the target(recoil) nucleus and thus the nucleus remains in the excited state. So in this case though the momentum is conserved, the kinetic energy of the system is not conserved.

In elastic scattering there is no transfer of energy to the nucleus . so here the energy is conserved .