Thomson cross section

Thomson cross section

[′täm·sən ′krȯs ‚sek·shən]
(electromagnetism)
The total scattering cross section for Thomson scattering, equal to (8/3)π(e 2/ mc 2)2, where e and m are the charge (in electrostatic units) and mass of the scattering particle, and c is the speed of light.
References in periodicals archive ?
This cross section is equal to four times the Thomson cross section for the scattering of a free electron by radiation.
In contrast, the cross section of hydrogen ion exposed to photon flux we computed is four times the Thomson cross section for the scattering of free electrons.