Free- free Scattering Theory of the Elastic Scattering of an Electron

Internal structure of target can be ignored and represented just as a scattering potential. For number of photon, l = -1, i.e, absorption of a photon (inverse Bremsstrahlung), The differential scattering cross section of an electron depends upon the fourth power of the wavelength (λ4) and the intensity of the Laser field The certain values of laser parameters the differential scattering cross section of scattered electron decreases with increase in scattering angle and attains a minimum value of 0.1 barn and further increase in scattering angle also increases in differential scattering cross section and attains a maximum value of 0.3 barn.

Website:  http://www.arjonline.org/physical-sciences/american-research-journal-of-physics/