FISSILE MATERIAL

Material containing a big number of easily fissionable nuclei which give off multiple neutrons in the fission process. Normal importance is that if a sufficiently big amount of fissile material is put together, a fission chain reaction can occur. Sometimes used synonymously with fissionable material, i.e., material that can be fissioned (though often under restricted circumstances, such as only with thermal (slow) neutrons). A more restricted importance use of fissile material limits the concept to those materials which can be fissioned by neutrons of all energies (fast & slow). Examples include Uranium-235 and Plutonium-239.

cornu inferius cartilaginis thyroideae cornu inferius marginalis falciformis hiatus sapheni cornu inferius ventriculi lateralis cornu laterale cornu majus ossis hyoidei cornu minus ossis hyoidei cornu posterius cornu posterius ventriculi lateralis (0)