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Homework Help: Photoelectric mass attenuation coefficient data

  1. Aug 6, 2011 #1
    1. The problem statement, all variables and given/known data
    I see graphs for the total mass attenuation coefficient such as this all over the web:http://scientificsentence.net/Radiations/images/attenuation_coefficients.jpg
    However, I can't find data on the individual attenuation coefficients such as the photoelectric or Compton attenuation coefficients. What I need is either a general formula to find them, although I imagine that the formulas will be very complex, or just experimental data on the coefficients for different elements/mediums (e.g. soft tissue).

    2. The attempt at a solution
    This is the closest data I could find, but it tells me nothing about the individual attenuation coefficients.

    Please tell me that someone reading this knows where to find this information or what to Google because I have run out of ideas. Thank you in advance.
  2. jcsd
  3. Sep 1, 2011 #2
    Try this doc:

    http://www.nist.gov/data/nsrds/NSRDS-NBS29.pdf [Broken]

    It's a collection of photon data tables (cross-sections, attenuation coefficients, etc.) for elements and compounds (Hubbell NSRDS-NBS29) - oldie but goodie :)
    Last edited by a moderator: May 5, 2017
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