I Thomson Scattering -- elastic collisions conundrum

AI Thread Summary
Thomson scattering involves the emission of energy due to the acceleration of charged particles, specifically electrons, which creates a changing electric field that radiates energy outward. However, the discussion raises a conundrum regarding the distribution of this energy, as it seems to suggest that detected photons should exhibit a lower wavelength due to energy spreading in all directions. Despite this expectation, Thomson scattering results in photons that maintain the same wavelength, indicating that the energy is not uniformly dispersed but rather directed in specific ways. The conversation emphasizes the importance of classical electromagnetic theory, particularly Maxwell's equations, in understanding these phenomena. Ultimately, the discussion highlights the complexities of energy distribution in elastic collisions and the nature of electromagnetic radiation.
C-Science
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Teacher described the Thomson scattering effect through the lens of the electric field changing as a moving particle is accelerated. The changing electric field of the electron accelerating carries with it an amount of energy, and this energy radiates out from the acceleration event. (there were more details but thats the gist I got)

I'm ok with this.

but since the electric field radiates out in all directions, the energy of the Efield shift should be spread out in all directions (this is where I think my thought process might be wrong, but I dont understand why) And if the energy is spread out, the energy of detected photons released along the wave front should be lowered by a factor of the angle of the detector - this would yield an elastic collision, but detected photons would be lower in wavelength. BUT detected photons are the same wavelength for Thomson scattering.. so it seems as all the energy of the collision is not released over a spherical surface, but in a specific direction, which denies the energy spreading out from the acceleration event in all directions of the E field. help?
 
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I would say that a) there are no photons in classical EM (photons are part of the QM theory of light); and, b) generally you need to look at Maxwell's equations to understand EM radiation.
 
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C-Science said:
but since the electric field radiates out in all directions, the energy of the Efield shift should be spread out in all directions
This doesn't necessarily have to follow. Best to do what @PeroK suggests and use the classical approach (there's nothing naughty about that!)
 
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