Russian Orthodox cross is also called just Orthodox cross. At the same time the Orthodox churches use different crosses and any of them is called "Orthodox cross". Moreover, there are no such crosses like just "Orthodox" or "Catholic", each type of cross is a feature of local tradition. The cross has three horizontal crossbeams — the top one represents the plate which in the older Greek tradition is inscribed with a phrase based on John's Gospel "The King of Glory", but in later images it represents , and the bottom one, a footrest. In many depictions, the side to Christ's right is higher.
Nuclear cross section inelastic scattering; of the latter, amongst neutron cross sections the absorption cross sections are of particular interest. In nuclear physics it is conventional to consider the impinging particles as point particles having negligible diameter. Cross sections can be computed for any sort of process, such as capture scattering, production of neutrons, etc. In many cases, the number of particles emitted or scattered in nuclear processes is not measured directly; one merely measures the attenuation produced in a parallel beam of incident particles by the interposition of a known thickness of a particular material. The cross section obtained in this way