Understanding Thomson Scattering for Non-Experts

  • Context: Undergrad 
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    Scattering Thomson
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Discussion Overview

The discussion revolves around Thomson scattering, particularly aimed at individuals without a background in electrodynamics. Participants seek clarification on concepts such as solid angles and scattering cross sections, with a focus on the relationship between the frequencies of incident and scattered photons.

Discussion Character

  • Exploratory, Conceptual clarification, Homework-related

Main Points Raised

  • One participant requests information on Thomson scattering, expressing confusion about solid angles and scattering cross sections.
  • Another participant references a source that states the differential scattering cross section is independent of the frequency of the incident wave and that the frequency of the scattered radiation equals that of the incident radiation.
  • A question is posed regarding whether the equality of the scattered and incident radiation frequencies is a consequence of the independence of the differential scattering cross section from the incident radiation frequency.
  • Some participants express frustration over a lack of responses, implying that they believe this topic should be familiar to undergraduate physics students.

Areas of Agreement / Disagreement

The discussion does not appear to reach a consensus, as participants express confusion and seek clarification without resolving the underlying questions about Thomson scattering.

Contextual Notes

Participants have not provided detailed explanations of solid angles or scattering cross sections, which may contribute to the confusion. The relationship between the scattering cross section and the frequencies of the incident and scattered radiation remains unclear.

cscott
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Can anybody provide me with information on thomson scattering for someone who hasn't done electrodynamics? I find ones like http://farside.ph.utexas.edu/teaching/jk1/lectures/node85.html but I don't know anything about solid angles and the scattering cross section is confusing me. I'm specifically interested in being able to show that the frequency of the incident photon is equal to the frequency of the scattered photon.
 
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In the link I provided they say

It is clear that the differential scattering cross section is independent of the frequency of the incident wave, and is also symmetric with respect to forward and backward scattering. The frequency of the scattered radiation is the same as that of the incident radiation.

Is the frequency of the scattered radiation equal to that of the incident radiation because the differential scattering cross-section is independent of the incident radiation?
 
No one? Isn't this standard undergrad physics :P
 
One more bump.
 

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