Control

Like thermal reactors, fast neutron reactors are controlled by keeping the criticalityof the reactor reliant ondelayed neutrons, with gross control from neutron-absorbing control rods or blades.

They cannot, however, rely on changes to their moderators because there is no moderator. So Doppler broadeningin the moderator, which affectsthermal neutrons, does not work, nor does a negativevoid coefficientof the moderator. Both techniques are very common in ordinarylight water reactors.

Doppler broadening from the molecular motion of the fuel, from its heat, can provide rapid negative feedback. The molecular movement of the fissionables themselves can tune the fuel's relative speed away from the optimal neutron speed. Thermal expansion of the fuel itself can also provide quick negative feedback. Small reactors such as those used in submarines may use doppler broadening or thermal expansion of neutron reflectors.

1. The main characteristics of atomic nucleus

2. Parameters of nuclear systems in radioactive decay

3. The main types of interactions in the microphysics

4. Nuclear fission and fusion

5. Features of fission reactions with charged particles

6. The fission cross section

7. Radioactive capture cross section

8. The cross section for Photodisintegration Reaction

9. Delayed neutrons and their role in the regulation of the

10. Macroscopic cross section

11. Physics of neutron diffusion

12. Collisions of neutrons in the reactor core

13. Neutron Multiplication Factor

14. Types of nuclear reactions

15. Nuclear reaction induced by neutrons.

16. Nuclear reaction induced by gamma rays

17. Nuclear reactions under the high energy electron

18. Nuclear reactions induced by protons

19. Nuclear reactions by alpha particles

20. Nuclear reaction induced by neutrinos

21. Nuclear reaction induced by heavy protons.

22. Nuclear reactions induced by mesons

23. Nuclear reactor as a source of neutrino

24. Key concepts in the physics of by nuclear reactions

25. The differential cross section

26. Integrated cross section

27. The partial cross section

28. Total cross sections

29. The threshold of the nuclear reaction

30. The Rutherford cross section

31. Nuclear Chain Reactions

32. Division scheme of fuel in the reactors with slow neutrons

33. Division scheme of fuel in the reactor on fast neutrons.

34. Coulomb barrier

35. Direct Nuclear Reaction

36. Nuclear reactions proceeding through the compound nucleus

37. The laws of conversation angular momentum, parity, charge, baryon charge, isospin.

38. Diffractive scattering

39. The kinematics of the two-particle nuclear reactions

40. The ratio between the elastic and inelastic cross