Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Gamma absortion in atmosphere

  1. Aug 3, 2004 #1
    Hi, can someone tell me the extinction coefficient of a gamma ray in the atmosphere? How far does a gamma beam go in the atmosphere before its intensity reduces to half or to 1/e?
     
  2. jcsd
  3. Aug 4, 2004 #2

    mathman

    User Avatar
    Science Advisor

    A long time ago, when I was working, I did calculations like this, but I can't remember the results. However, one thing that is very important is that it the distances you want are very strongly dependent on the gamma ray energy. 10 Mev rays go much further than 1 Mev rays.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook