In general, nuclear cross-sections can be measured for all possible interaction processes together, in this case they are called total cross-sections (σt). Periodic Table
Total Cross-section
In general, nuclear cross-sections can be measured for all possible interaction processes together, in this case they are called total cross-sections (σt). The total cross section is the sum of all the partial cross sections such as:
- elastic scattering cross-section (σs)
- inelastic scattering cross-section (σi)
- absorption cross-section (σa)
- radiative capture cross-section (σγ)
- fission cross-section (σf)
σt = σs + σi + σγ + σf + ……
The total cross-section measures the probability that an interaction of any type will occur when neutron interacts with a target.
Uranium 238. Comparison of cross-sections.Source: JANIS (Java-based Nuclear Data Information Software); The JEFF-3.1.1 Nuclear Data LibraryHydrogen. Neutron absorption and scattering. Comparison of cross-sections.Source: JANIS (Java-based Nuclear Data Information Software); The JEFF-3.1.1 Nuclear Data LibraryXenon – 135. Neutron absorption and scattering. Comparison of cross-sections.Source: JANIS (Java-based Nuclear Data Information Software); The JEFF-3.1.1 Nuclear Data Library
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