NE 220 - IRRADIATION EFFECTS IN NUCLEAR MATERIALS (3 units)

Physical aspects and computer simulation of radiation damage in metals. Void swelling and irradiation creep. Mechanical analysis of structures under irradiation. Sputtering, blistering and hydrogen behavior in fusion reactor materials. Offered odd-numbered years. (Spring) Olander

Catalog Description:

Physical aspects and computer simulation of radiation
damage in metals. Void swelling and irradiation. Sputtering, blistering,
and hydrogen behavior in fusion reactor materials.

Text:

• none

Reference:

• D. R. Olander, "Fundamental Aspects of Nuclear
  Reactor Fuel Elements", U. S. Gov't. Printing Office (1976) (several
  copies in the Engineering Library)

Topics:

1. Basics of Radiation Damage - Collision
   dynamics;
   displacements; cross sections; dose(dpa);
   computer simulation of radiation damage due to neutrons.
2. Ion interactions with solids -
   Monte Carlo method and the TRIM code;
3. Point defect characteristics-
   equilibrium concentrations of vacancies

   and interstitials; diffusion of point defects; point defect reactions

4. Extended Defects in Solids - bubbles
   and voids; dislocations
5. Interaction of point defects and extended
   defects; diffusion of point
   defects to cavities and dislocations; interstitial bias of dislocations;

   point defect balances

6. Void Swelling - nucleation and
   growth of voids;
   effect of gas pressure on swelling
7. Irradiation and Thermal Creep
   - swelling-driven creep; SIPA creep
8. Irradiation growth
9. Structural Analysis under Irradiation
   - effects of temperature, swelling and creep
10. Fusion Materials
11. Heating and Vaporization of the First Wall
    
12. Sputtering due to Heavy Ions
13. Hydrogen Behavior in Metals
14. Blistering of First Wall