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Neutron diffusion around thin absorber

  1. Mar 17, 2015 #1
    1. The problem statement, all variables and given/known data
    Mono-energetic sources of neutrons emitting S neutrons/cm^3 sec are distributed uniformly throughout an infinite material (characterized by a macroscopic absorption cross section Σa and a diffusion coefficient D). An infinite sheet of very thin absorber, of thickness t and macroscopic absorption cross section Σa1, is inserted in the moderator at x = 0. Compute the new flux that is established throughout the material after the thin absorber has been inserted.

    2. Relevant equations
    1D diffusion equation

    3. The attempt at a solution
    See attached scan.pdf
     

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  2. jcsd
  3. Mar 22, 2015 #2
    Thanks for the post! This is an automated courtesy bump. Sorry you aren't generating responses at the moment. Do you have any further information, come to any new conclusions or is it possible to reword the post?
     
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