- #1
PolywellGuy
- 7
- 0
Hello,
When neutrons hit materials, it can cause them to degrade and crack. The way this is measured is in displacements per atom. The equation for this effect is the following:
Displacements per atom = neutron flux * time * materials cross section (@ that neutron energy)
Cracks will form in a normal fission reactor when you reach 1 dpa or higher. As a benchmark, a typical PWR reactor core will experience between 0 and 90 dpa. Here is the question:
1.Does bombarding a material with protons cause cracking or displacements?
2. If yes, then what is the equation used to predict these displacements?
3.Can this equation be used?
4.Is there a similar effect found in: alpha particles, and hydrogen nuclei?
When neutrons hit materials, it can cause them to degrade and crack. The way this is measured is in displacements per atom. The equation for this effect is the following:
Displacements per atom = neutron flux * time * materials cross section (@ that neutron energy)
Cracks will form in a normal fission reactor when you reach 1 dpa or higher. As a benchmark, a typical PWR reactor core will experience between 0 and 90 dpa. Here is the question:
1.Does bombarding a material with protons cause cracking or displacements?
2. If yes, then what is the equation used to predict these displacements?
3.Can this equation be used?
4.Is there a similar effect found in: alpha particles, and hydrogen nuclei?