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Old 28-August-2006, 11:28 PM
trinitree88 trinitree88 is offline
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Join Date: Sep 2005
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Cool

Quote:
Originally Posted by George View Post
Hmmmm... I hadn't meant "up and down" to apply to electron velocities but it is an interesting thought.

Is the broadening greater with greater tempuratures, up to a point, I suppose?

It would be interesting to see someone do a portrayal of the random walk of a single progenitor gamma ray as it starts in the core of the sun and travels to the surface, passing through the various shells, resulting in its more than 5 thousand colorful offspring.


George. Yes, the Doppler broadening increases with temperature. I was taking a tour of MIT's plasma fusion center, and somebody asked the guide what kind of "thermometer" they used...as a joke...to measure the plasma temperature. A short discourse on lines becoming bands ensued...interesting. Pete.
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