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
Horizontal (album) Horizontal (album) Horizontal is the fourth studio album by the Bee Gees, and their second album to receive an international release. The LP was released in early 1968, and included the international hit singles "Massachusetts" and "World". On 5 February 2007, Reprise Records reissued "Horizontal" with both stereo and mono mixes on one disc and a bonus disc of unreleased songs, non-album tracks, and alternate takes. The album was released in Polydor in many countries and on Atco only in the US and Canada. "And the Sun Will Shine" (backed by "Really and Sincerely") was released as a single only