Nuclear cross section

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The nuclear cross section of a nucleus is used to characterize the probability that a neutron-nuclear reaction will occur.

The nuclear reaction rate is where:

• R = number of reactions/second
• Φ = neutron beam flux in units of n/area/second
• σ = proportionality constant in unit of area (usually barns or cm²). σ is also known as the microscopic cross section for fission.
• N_A = total number of target atoms

[edit] References

• Nuclear Reactor Analysis by James J. Duderstadt and Louis J. Hamilton - Published by John Wilet & Sons, Inc.
• Perkins, Donald H. (1999). Introduction to High Energy Physics. Cambridge University Press. ISBN 0-521-62196-8.

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