1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

EM scattering

  1. May 21, 2009 #1
    Would I be right in saying the difference between Rayleigh and Tomson scattering is that Tomson involves scattering off a free electron, whereas in Rayleigh the incident wave is scattered off a bound nucleus?

    Alos are there any other differences in the two scattering processes?

    Thanks
     
  2. jcsd
  3. May 21, 2009 #2
    One final thing. Are both elastic scattering?
     
  4. May 21, 2009 #3
    In the classical limit, Thomson scattering is treated as elastic scattering off a single "free" electron; If the electron atomic binding energy is B, and electron rest mass is m0c2, then B << hv << m0c2 for Thomson scattering. It is the classical limit of Compton scattering, which is inelastic. The energy of the scattered photon is given by
    (1/hv') -(1/hv) = 1/[m0c2(1-cos{theta})]
    which shows that the scattered photon hv' at theta=90 degrees is nearly exactly the same energy as the incident photon hv for UV and soft x-rays (hv ~ 1000 eV).
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: EM scattering
  1. Rutherford scattering (Replies: 0)

  2. Scattering of Light (Replies: 3)

  3. Rayleigh Scattering (Replies: 4)

Loading...