Assertion: reactor bred plutonium | /r/MadeOf | certain amount of 240pu
Facets:
value: in practice
type: TEMPORAL
value: invariably
type: MANNER
value: due to the tendency of 239pu
type: CAUSE
Source sentences:
text: In practice, however, reactor-bred plutonium will invariably contain a certain amount of 240Pu due to the tendency of 239Pu to absorb an additional neutron during production.