Sm-149

GPTKB entity

Statements (24)
Predicate Object
gptkbp:instanceOf isotope
gptkbp:application nuclear reactor control
gptkbp:atomicNumber 62
gptkbp:category fission product poison
gptkbp:containsElement samarium
gptkbp:crossSection ~42,000 barns (thermal neutrons)
gptkbp:decaysTo neodymium-145
gptkbp:foundIn nature
gptkbp:halfLife 7×10^15 years
https://www.w3.org/2000/01/rdf-schema#label Sm-149
gptkbp:massNumber 149
gptkbp:mode alpha decay
gptkbp:naturalAbundance 13.82%
gptkbp:neutrons 87
gptkbp:notableFor very high neutron absorption cross section
gptkbp:parent neodymium-145
promethium-149
gptkbp:protons 62
gptkbp:stable no
gptkbp:symbol 149Sm
gptkbp:usedIn nuclear science
gptkbp:bfsParent gptkb:Samarium-149
gptkb:Sm
gptkbp:bfsLayer 8