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Nuclear Reaction Rate is R = (σ)(I)(NA)

where:

  • R = number of reactions/(square centimeter-second)

  • σ is a proportionality constant in units of centimeters squared. σ is also known as the microscopic cross section for fission.

  • I = neutron beam intensity in units of neutrons/(square centimeter-second)

  • NA = the number of target atoms per unit area


Units: barn(s), b


REFERENCES

''Nuclear Reactor Analysis'' by James J. Duderstadt and Louis J. Hamilton - ''Published by John Wilet & Sons, Inc.''