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FMn card in mcnp code

  1. May 29, 2010 #1
    Hi there

    I have a question about FMn card in mcnp code.
    there is a parameter (is named C) in front of FMn card, I can not understand to calculate the value of that parameter. please help me.

    thanks alot.
  2. jcsd
  3. Jun 2, 2010 #2


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    Staff Emeritus
    Science Advisor

    Re: mcnp

    What is the context?

    It the C on a separate line and in the first column? This could be a comment.
  4. Jun 3, 2010 #3
    Re: mcnp

    I think you are refering to the first value after the FM, which in some literature and depending on what you are multiplying for is refered to as C. Depending on if you want reaction rate, heating and what sort of tally F1, F2, F4 etc then it is different.

    There is good information in the literature particularly for medical physics
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