Actinium-225 (Accelerator-Produced)

Related Products:   Actinium-225  Actinium-227
ISOTOPE    Actinium-225 (Accelerator-Produced)
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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
ActivityTheoretical Specific Activity: 5.8x104 Ci/g;
not carrier free (contains Ac-227)
Radiopurity≥98% Ac-225; ~0.12% Ac-227 at EOB
SourceProton irradiation of a natural thorium target
ProcessingSeparated by ion exchange and extraction chromatography
ShipmentGlass screw top V-vial in nonreturnable container
AvailabilityEvery other month
Unit of SaleMillicuries
ContactOak Ridge National Laboratory
National Isotope Development Center
Call: (865) 574-6984
Fax: (865) 574-6986

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