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Chain Reaction Multiplication Criticality Conditions

Chain Reaction Multiplication Criticality Conditions. Overview. Chain Reaction Conversion and Breeding Doubling Time Neutron Cycle in a Thermal Reactor Multiplication Factor k Simplified Fuel Cycle Fuel at Discharge. Chain Reaction. n. ν. β. γ. ν. γ. β. Uranium Fuel.

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Chain Reaction Multiplication Criticality Conditions

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  1. Chain ReactionMultiplicationCriticality Conditions T8: Chain Reaction

  2. Overview • Chain Reaction • Conversion and Breeding • Doubling Time • Neutron Cycle in a Thermal Reactor • Multiplication Factor k • Simplified Fuel Cycle • Fuel at Discharge T8: Chain Reaction

  3. Chain Reaction n ν β γ ν γ β T8: Chain Reaction

  4. Uranium Fuel T8: Chain Reaction

  5. Conversion or Breeding T8: Chain Reaction

  6. Conversion T8: Chain Reaction

  7. Conversion T8: Chain Reaction

  8. Neutron Cycle in Reactor Leakage E N2 2 MeV N1 Fast fission Slowing down n n/fission Energy Resonance abs. ν ≈ 2.5 Non-fissile abs. Non-fuel abs. 1 eV Fission 200 MeV/fission Leakage T8: Chain Reaction

  9. Fast Fission T8: Chain Reaction

  10. Simple Criticality Calculations T8: Chain Reaction

  11. Fuel Cycle (Thermal) Fissile Materials Fuel Factory Thermal Reactor Actinides (MA) Fiss. Pr. (FP) DU Spent Fuel T8: Chain Reaction

  12. Fuel Cycle (Fast) Spent Fuel Fuel Factory Fast Reactor FP+MA Spent Fuel DU T8: Chain Reaction

  13. Neutron Economy T8: Chain Reaction

  14. Breeding Factor B neutrons captured in fertile 1 neutron absorbed in fuel η neutrons produced 1 neutron to maintain chain reaction Non-fuel capture and losses C+L T8: Chain Reaction

  15. ηFactor T8: Chain Reaction

  16. Fission Neutrons 239Pu 235U 233U E = 1 T8: Chain Reaction

  17. Conversion Factor If B < 1 it is called conversion factor, C. Number of 239Pu created per 1 neutron absorbed T8: Chain Reaction

  18. Neutron Cycle in Reactor Leakage E N2 2 MeV N1 Fast fission Slowing down n n/fission Energy Resonance abs. ν ≈ 2.5 Non-fissile abs. Non-fuel abs. 1 eV Fission 200 MeV/fission Leakage T8: Chain Reaction

  19. Chain Reaction in Unat? T8: Chain Reaction

  20. Doubling Time Td for a breeder reactor is the amount of time required for the original fissile loading to double T8: Chain Reaction

  21. Doubling Time for FR T8: Chain Reaction

  22. Multiplication Factor T8: Chain Reaction

  23. Chain Reaction by Fast N. 235U T8: Chain Reaction

  24. Time to Fission 1 kg 235U T8: Chain Reaction

  25. Energy Comparison T8: Chain Reaction

  26. Distribution of FP Mass T8: Chain Reaction

  27. T8: Chain Reaction

  28. Long-Lived Radio Isotopes T8: Chain Reaction

  29. Half-Lives of L.L. Isotopes T8: Chain Reaction

  30. The END T8: Chain Reaction

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