Neutron Absorption Cross-section
The absorption cross-section represents the likelihood of a neutron absorption as σa. The relative likelihoods of an absorption reaction or a neutron scattering are represented by dividing the total cross-section into scattering and absorption cross-sections:
σt = σs + σa
Given a collision, σa / σt is the probability that the neutron will beabsorbed and σs / σt is the probability that the neutron will be scattered.
σa
Source: JANIS (Java-based Nuclear Data Information Software); The JEFF-3.1.1 Nuclear Data Library
![Hydrogen. Neutron absorption and scattering. Comparison of cross-sections.](https://nuclear-power.com/wp-content/uploads/2015/11/neutron-absorption-capture-to-scattering-hydrogen-min-300x183.png)
Source: JANIS (Java-based Nuclear Data Information Software); The JEFF-3.1.1 Nuclear Data Library
![Xenon - 135. Neutron absorption and scattering. Comparison of cross-sections.](https://nuclear-power.com/wp-content/uploads/2015/11/neutron-absorption-capture-to-scattering-Xenon-min-300x198.png)
Source: JANIS (Java-based Nuclear Data Information Software); The JEFF-3.1.1 Nuclear Data Library
![Table of cross-sections](https://nuclear-power.com/wp-content/uploads/2014/11/cross-sections_nuclides.png)