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 blanking interval time. This part of the line display process is the Horizontal Blank. In detail, the Horizontal blanking interval consists of: In the NTSC television standard, horizontal blanking occupies (17.2%) out of every scan line. In PAL, it occupies (18.8%) out of every scan line. In the PAL television standard, the blanking level corresponds to the black level, whilst other standards, most notably NTSC, set the black level slightly above the blanking level on a 'pedestal'. Some graphics systems can count horizontal blanks and change how the display is generated during this blank time in the signal; this is called a