Recent content by tiepngh

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    What are the sources of neutrons in starting up a nuclear reactor?

    Thank for all if you understand my ideal. My problem is i don't know what's neutron which cause of fission in critical accident? seem it must be have the first neutrons, and then reaction fission occurred ? eg The critical model in some nuclear accident, what is neutron source? The...
  2. T

    Hi every body, i'm working and calculating the keff, and total

    Many thanks, and i will try to finish my problem...thanks again!
  3. T

    Hi every body, i'm working and calculating the keff, and total

    Thanks you very much, i have calculate critical model with solution material, one things i don't know that σf, and could you show me how to find it? Solution : UO2(NO3)2 . 6 H2O.
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    Hi every body, i'm working and calculating the keff, and total

    thanks for your answer, and could you show me about Ʃf clearly, eg i want to calculate with thermal neutron(E < 6.625e-7 MeV), and fission cause of U235. how is Ʃf? Thanks you !
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    Hi every body, i'm working and calculating the keff, and total

    hi every body, I'm working and calculating the keff, and total hi every body, I'm working and calculating the keff, and total fission produced in critical accident in the cylindrical model. If critical mass is roached. I calculated variable multiply coefficient (keff) by MCNP 5. also [B]total...
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