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Recent content by sleepingSatellite

  1. sleepingSatellite

    PWR or BWR cross sections for burnup simulation of a pool-type reactor

    I have to do a burnup simulation of fuel in a pool-type research reactor. But I only have cross section sets for BWR and PWR. In your opinion which one of the two available cross section sets fit the best for the pool-type reactor and why ? Thanks.
  2. sleepingSatellite

    Burn-up unit of measure

    Yes, it is "a/o". Searching on the internet I found that "a/o" means "total atom per cent". A colleague of mine told me that "a/o" corresponds to what is called "%FIMA", that is, "fissions per initial metal atom": the percentage of atoms of heavy metal having undergone fission. This includes...
  3. sleepingSatellite

    Burn-up unit of measure

    In old publications from the 80's and 90's I find the burn-up expressed in "a/o". For example it reads that a certain fuel rod has reached a burn-up of 6.2 a/o. What does it mean ? How can I convert this a/o in MWd/kg HM ? Thanks in advance.
  4. sleepingSatellite

    Turning a Laplace transfer function with time shifting into a z-transform transfer function

    Thank you very much, PNachtwey. Could you retry setting a = nT, with n equal to any integer (for example n = 3) ? I've read some literature and found many examples of continuous systems preceded by a signal-discretizing S&H: because of the upstream S&H the z-transform should be employed. But I...
  5. sleepingSatellite

    Turning a Laplace transfer function with time shifting into a z-transform transfer function

    I have a continuous system, having L-transfer function F(s)G(s), followed by a sample-and-hold, according to the following scheme: Input signal -> F(s) --> G(s) --> S&H(period = T) -> Output signal The sample-and-hold samples its input signal at times t = nT (so T is the period). I have...
  6. sleepingSatellite

    Shielding calculation and nuclide vector

    racookpe1978, EnergyMix, thank you very much for your help. I have been given a sheet reporting an example of nuclide vector contained in a cask. But it's just an example. There are the following nuclides: H-3, C-14, Mn-54, Fe-55, Co-60, Ni-63, Ag-110m, Sb-125, I-129, Cs-134, Cs-137, Pu-241...
  7. sleepingSatellite

    Shielding calculation and nuclide vector

    I don't have the nuclide vector yet, because now I'm not yet asked to make the shielding calculation, but only to forecast how many working hours I need to do it. On the basis of my forecast my employer would make an offer to the client. The only information I dispose of now is that it's...
  8. sleepingSatellite

    Shielding calculation and nuclide vector

    I have to make a shielding calculation of some radioactive scrap metal in a cask, using Geant4 (hence Monte-Carlo). I will be given a nuclide vector and I'll have to calculate the ambient dose equivalent rate outside of the cask. The nuclide vector I will be given will be something like: Co60...
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