nuclear cross section


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nuclear cross section

[′nü·klē·ər ′krȯs ‚sek·shən]
(nuclear physics)
A measure of the probability for a reaction to occur between a nucleus and a particle; it is an area such that the number of reactions which occur in a sample exposed to a beam of particles equals the product of the number of nuclei in the sample and the number of incident particles which would pass through this area if their velocities were perpendicular to it.
References in periodicals archive ?
We have evaluated the neutron induced nuclear cross section data of zirconium isotopes for considerable energy range 8.
2] are the number density of the light atoms being fused, [sigma] is the nuclear cross section of the fusion reaction at that temperature, V is the average velocity of the light atoms when they collide, and E is the energy made per fusion reaction[3].
The culmination of the work, after better data on nuclear cross sections became available, was the famous 1957 paper on nucleo-synthesis coauthored with Geoffrey and Margaret Burbidge and William Fowler.

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