# Suppose that the scattering angle for an elastic collision of a neutron with an atomic nucleus in a.

Suppose that the scattering predilection for an ductile collision of a neutron delay an minute kernel in a nuclear fuel rod is observed to be 45°. What was the minute majority A of the kernel that the neutron hits if the scattering predilection was 90° in the COM arrangement? From your acquaintance of nuclear materials, what part did the neutron give-a-blow-to delay in the fuel rod?