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Rayleigh scattering on gases-questions

  1. May 15, 2013 #1

    ty1

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    first question, would there be more rayleigh scattering on neon gas vs air?

    im wondering if you have a tube of neon gas, and shine a laser through it, will the laser beam become visible? as opposed to shining a laser pointer around and only seeing the dot.
     
  2. jcsd
  3. May 16, 2013 #2

    DEvens

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    http://en.wikipedia.org/wiki/Rayleigh_scattering

    Going to depend on the parameters in the equation given there. Does Neon have larger or smaller average particle diameter compared to air? Does it have a larger or smaller index of refraction? If you find those, you'll be able to calculate the scattering intensity.
     
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