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March 2, 2011 Fill in derivation from last lecture Polarization of Thomson Scattering No class Friday, March 11

Dec 22, 2015

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  • March 2, 2011 Fill in derivation from last lecture Polarization of Thomson Scattering No class Friday, March 11
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  • If Show that Need two identities: So Now
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  • Magnitudes of E(rad) and B(rad): Poynting vector is in n direction with magnitude
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  • The Dipole Approximation Generally, we will want to derive for a collection of particles with You could just add the s given by the formulae derived previously, but then you would have to keep track of all the t retard (i) and R retard (i) The Dipole Approximation
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  • One can treat, however, a system of size L with time scale for changes tau where so differences between t ret (i) within the system are negligible Note: since frequency of radiation Ifthen or This will be true whenever the size of the system is small compared to the wavelength of the radiation. The Dipole Approximation
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  • Thomson Scattering Rybicki & Lightman, Section 3.4
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  • Thomson Scattering EM wave scatters off a free charge. Assume non-relativistic: v
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