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Encyclopedia > Cross section

Cross section may refer to the following

  • In geometry, Cross section is the intersection of a 3-dimensional body with a plane.
  • In physics, Cross section represents the probability of an interaction event between two particles.

  Results from FactBites:
 
Scattering Cross Section (530 words)
The concept of cross section, as its name suggests, is that of effective area for collision.
The units of cross section are then area units, but for nuclear scattering the effective area is on the order of the cross sectional area of a nucleus.
The cross section in barns for alpha scattering above a selected angle is a standard part of the analysis of Rutherford scattering.
  More results at FactBites »

 

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