Individual:
http://rdf.iit.demokritos.gr/2014/iaeaSafetyGlossary/id785
Annotations (2)
-
nreo:canonicalLabel "uranium" (en)
-
skos:definition "<i><b>depleted uranium.</b></i> Uranium containing a lesser mass percentage of <br/>uranium-235 than in 'natural uranium'. (From Ref. [2].)<br/>
<i><b>enriched uranium.</b></i> Uranium containing a greater mass percentage of <br/>uranium-235 than 0.72%. (From Ref. [2].)<br/>
<i><b>high enriched uranium (HEU).</b></i> Uranium containing 20% or more of the <br/>isotope 235U. 'HEU' is considered a 'special fissionable material' and a direct <br/>use material. (From Ref. [32].)<br/>
<i><b>low enriched uranium (LEU).</b></i> 'Enriched uranium' containing less than <br/>20% of the isotope 235U. 'LEU' is considered a <i>special fissionable material<br/></i>and an indirect use material. (From Ref. [32].)<br/>
<i><b>natural uranium.</b></i> Uranium (which may be chemically separated) <br/>containing the naturally occurring distribution of uranium isotopes <br/>(approximately 99.28% uranium-238 and 0.72% uranium-235 by mass). <br/>(From Ref. [2].)<br/>
In all cases, a very small mass percentage of uranium-234 is present.<br/>The naturally occurring distribution of uranium isotopes including uranium-<br/>234 (approximately 99.285% uranium-238, 0.710% uranium-235 and 0.005% <br/>uranium-234 by mass) corresponds to approximately 48.9% uranium-234, <br/>2.2% uranium-235 and 48.9% uranium-238 by 'activity'.<br/>" (en)
Types (1)
Usage (10)