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Nuclear Thermal Rockets

Nuclear Thermal Rockets. Brice Cassenti University of Connecticut. Nuclear Energy. Relativity Fission energy Radioactive decay Cross-sections Nuclear thermal rockets. Relativistic Energy. For all particles For photons For. Binding Energy. Fission of 92 U 235. Fission Process.

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Nuclear Thermal Rockets

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  1. Nuclear Thermal Rockets Brice Cassenti University of Connecticut

  2. Nuclear Energy • Relativity • Fission energy • Radioactive decay • Cross-sections • Nuclear thermal rockets

  3. Relativistic Energy • For all particles • For photons • For

  4. Binding Energy

  5. Fission of 92U235

  6. Fission Process

  7. Radioactive Decay • Consider uranium alpha decay • Decay rate is proportional to number left • Activity measured in Sieverts

  8. Fission Fragment Decay

  9. Fission Fragment Size

  10. Neutrons Emitted

  11. Neutron Energy

  12. Cross-Section • Cross-section = s • Units • 1 barn=10-24cm2

  13. Uranium Fission Cross-Sections

  14. Some Cross-Sections in barns

  15. Neutron Moderator

  16. Scattering Cross-Sections

  17. Reactor Schematic

  18. Nuclear Thermal Propulsion • Solid Core • 850-950 second Specific Impulse • Gas Core • 1800-1950 second Specific Impulse

  19. Solid Core Schematic

  20. NERVA Program

  21. NERVA Core & Fuel Rods

  22. Core Layout

  23. Gas Core Rocket

  24. Nuclear Light Bulb

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