Differentiate between neutron elastic scattering and inelastic scattering. Draw elastic scattering cross-section curves for and
and write their features.
Neutron scattering is the process in which neutrons interact with nuclei in a material. It is classified into elastic scattering and inelastic scattering based on energy exchange. 1. Neutron Elastic Scattering: * In elastic scattering, the neutron collides with a nucleus without any energy loss except that due to recoil of the nucleus. * The kinetic energy of the system is conserved. * The neutron may change direction, but its speed decreases slightly depending on the mass of the target nucleus. * _________ _________ ___ ___ ________ ______ __________ ________ ________.
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Calculate, using Weiszäcker formula, the binding energy per nucleon for .
Given:
What are
The initial energy of a neutron is 2 MeV, calculate the maximum energy loss due to elastic scattering in .
State Fick's law. Discuss its importance in neutron transport /diffusion. Write the assumptions used to derive Fick's law and hence derive its expression.
Derive neutron transport equation in terms of angular neutron flux for a heterogeneous multiplying assembly. Rewrite simplified form of this equation for a non-multiplying and homogeneous assembly.
What are prompt and delayed neutrons? Discuss the role of delayed neutrons in reactor safety.
5 MeV neutron is scattered through an angle of 45 degrees in a collision with nucleus. Calculate the energy of scattered neutrons and energy of the recoiling nucleus.