collision cross section


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Related to collision cross section: Scattering cross section

collision cross section

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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where [n.sub.s] is the number density of species s (s represents [N.sub.2], [O.sub.2], N, O, and NO), [kappa] = 138 x [10.sup.-23] is the Boltzmann constant, and CTes is the collision cross section between electron and species s.
Impact Parameters and Collision Cross Section. In homogenous gas, the probability of two molecules collision is proportional to their relative speed and total collision cross section.
The collision frequency is a function of background gas number density, velocity of electrons, and collision cross section of electrons with the background gas.

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