A monoenergetic beam of neutrons cp 4 x 1 0 10, Ask an Expert

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A monoenergetic beam of neutrons, cp = 4 X 1 0 10 neutrons/cm2-sec, impinges on a target 1 cm2 in area and 0. 1 cm thick. There are 0.048 x 1 024 atoms per cm3 in the target, and the total cross-section at the energy of the beam is 4.5 b.

(a) What is the macroscopic total cross-section?

(b) How many neutron interactions per second occur in the target?

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