Scatter vs Diffusion: What’s the Difference?

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Discussion Overview

The discussion focuses on the differences between scattering and diffusion, particularly in the context of electromagnetic waves and light behavior. Participants explore the definitions and implications of each term, seeking to clarify their understanding of how light interacts with various media.

Discussion Character

  • Conceptual clarification, Debate/contested

Main Points Raised

  • One participant seeks to understand the distinction between scattering and diffusion, suggesting that scattering leads to diffusion.
  • Another participant proposes that scattering occurs with fewer, more separated interactions, while diffusion involves numerous closely spaced interactions.
  • A later reply provides an example of scattering involving a photon hitting an electron, contrasting it with light passing through fog, which exemplifies diffusion.
  • There is a suggestion that the quantitative differences between scattering and diffusion may lead to qualitative distinctions.

Areas of Agreement / Disagreement

Participants present differing views on the definitions and implications of scattering and diffusion, indicating that the discussion remains unresolved with multiple competing perspectives.

Contextual Notes

Some assumptions regarding the definitions of scattering and diffusion may not be fully articulated, and the discussion does not resolve the nuances of how these concepts interact in various contexts.

dervast
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Hi. I want to know what's the difference between scatter and diffusion... I am trying to understand what happens to the electromagnetic wave when we are talking about scattering and about light diffusion.. I think that the result of scattering it to make the light to diffuse.. Is that right?
 
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Scattering usually is used when the number of changes by the medium is small and somewhat separated. Diffusion is used when there are a large number of changes and the separations are small.
 
Thx a lot for your answer but can u plx expalin me a little more what u have said above
 
For example - a photon (gamma ray) hits an electron and changes direction. This is a single scatter. Alternatively - light going through a fog undergoes many interactions (individual scatters don't mean much) This is diffusion. To some extent, quantitative difference becomes qualitative.
 

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