11. E . g . in case of Compton scattering , two Feynman diagrams are needed to compute the amplitude. 12. Incidentally the name given to this process of a photon interacting with an electron in this way is Compton scattering . 13. Although nuclear Compton scattering exists, Compton scattering usually refers to the interaction involving only the electrons of an atom. 14. Although nuclear Compton scattering exists, Compton scattering usually refers to the interaction involving only the electrons of an atom. 15. But Compton scattering does not heat up air-rather it makes light that looks pretty much like an aurora. 16. His major contribution included his work on Compton scattering , R-process, and furthermore the advancement of nuclear physics. 17. When a high-energy photon collides with a free electron and transfers energy, the process is called Compton scattering . 18. At the high photon energies comparable to the electron rest energy of, Compton scattering , another process, may take place. 19. These photons in turn produce high energy free electrons by Compton scattering at altitudes between ( roughly ) 20 and 40 km. 20. Thus, light must behave as if it consists of particles, if we are to explain low-intensity Compton scattering .