Actinium-225 (Thorium-229 Decay Product)

Related Products:   Actinium-225 (Acc)
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ISOTOPE    225Ac
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Half Life / Daughter10 days to francium-221
Decay ModeMultiple alpha and beta emissions to stable bismuth-209
Major RadiationAlpha: 5.83 MeV
Beta: 1.42 MeV
FormDried nitrate solid
Activity5.80 x 104 Ci/g (specific activity); carrier free
Radiopurity>98% Ac-225; <2% Ra-225
PRODUCTION
SourceDecay of thorium-229
ProcessingSeparated by ion exchange and solvent extraction
DISTRIBUTION
ShipmentGlass screw cap bottle in nonreturnable container
AvailabilityWeekly; 4-6 weeks advance order
Unit of SaleMillicuries
ContactOak Ridge National Laboratory
National Isotope Development Center
Call: (865) 574-6984
Fax: (865) 574-6986
email: contact@isotopes.gov

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