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Homework Help: Mass absorption coefficient of aluminium

  1. Dec 13, 2011 #1
    I was conducting an experiment, and we had to use a radioactive source and a Geigor counter, in conjunction with aluminium plates.

    Using the data we produced we had to graph an absorption curve and obtain a value for the mass absorption coefficient of aluminium.

    Then we had to compare this value with the accepted value for the mass absorption coefficient of aluminium.

    Would anyone here know what the accepted value is, as I can't seem to locate it on Google, or anywhere else.

    Thank you. :smile:
    Last edited: Dec 13, 2011
  2. jcsd
  3. Dec 13, 2011 #2

    Simon Bridge

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    mass attenuation coefficient perhaps?
    Of course, those that the NIST data for x-rays ... I'm guessing yours was a gamma source?
    Now you know what to look up, you should be able to find it.
  4. Dec 13, 2011 #3

    I'll have another look. Thank you.
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