Preferred Label : microscopic cross-section;
Detailed label : microscopic cross-section, σ ;
IUPAC definition : A measure of the probability of a specified interaction or reaction between an incident
radiation and a target particle or system of particles. It is the reaction rate per
target particle for a specified process divided by the flux of the incident radiation.
In general, a specification is added of the type of radiation (e.g. neutron, photon),
the energy of the incident radiation (e.g. thermal, epithermal, fast) and the type
of interaction of reaction (e.g. activation, fission, scattering).;
Origin ID : M03911;
See also
A measure of the probability of a specified interaction or reaction between an incident
radiation and a target particle or system of particles. It is the reaction rate per
target particle for a specified process divided by the flux of the incident radiation.
In general, a specification is added of the type of radiation (e.g. neutron, photon),
the energy of the incident radiation (e.g. thermal, epithermal, fast) and the type
of interaction of reaction (e.g. activation, fission, scattering).
