Neutron cross section according to its neutron cross section and how it reacts to an incident neutron. Nuclides that tend to absorb a neutron and either decay or keep the neutron in its nucleus are neutron absorbers and will have a "capture cross section" for that reaction. Isotopes that fission, are fissionable fuels and have a corresponding "fission cross section". The remaining isotopes will simply scatter the neutron, and have a "scatter cross section". Some isotopes, like uranium-238, have nonzero cross sections of all three. Isotopes which have a large scatter cross section and a low mass are good neutron moderators (see chart
Patriarchal cross rejected and mocked Jesus and therefore descended into Hades. Many symbolic interpretations of the double cross have been put forth. One of them says that the first horizontal line symbolized the secular power and the other horizontal line the ecclesiastic power of Byzantine emperors. Also, that the first cross bar represents the death and the second cross the resurrection of Jesus Christ. The Russian cross can be considered a modified version of the Patriarchal cross, having two smaller crossbeams, one at the top and one near the bottom, in addition to the longer crossbeam. One suggestion is the lower crossbeam