Requires a Wolfram Notebook System
Interact on desktop, mobile and cloud with the free Wolfram Player or other Wolfram Language products.
First observed by Arthur Compton in 1923, the Compton effect occurs when an incident X-ray photon scatters with an electron. The X-ray loses energy depending on the angle of scattering; the total momentum and energy of the photon and electron are conserved.
Contributed by: Enrique Zeleny (March 2011)
Open content licensed under CC BY-NC-SA
The energy shift in the Compton experiment is
where is the wavelength of the incident X-ray (in this example, ), is the wavelength of the scattered X-ray, is Planck's constant, is the rest mass of the electron, is the speed of light, and is the scattering angle.