Thorium-227

Related Products:   Thorium-228  Thorium-229
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ISOTOPE    227Th
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Half Life / Daughter18.7 days, alpha emission to11.4-day radium-223, rapidly followed by
remaining six short-lived members of the decay chain
Major RadiationAlpha emission (5.7 to 6.0 MeV) with many gamma lines; decay products
contribute other alpha, beta, and gamma radiations
FormCarrier-free dry solid, near zero mass
Activity0.5 mCi (18 MBq) to 125 mCi (4.62 GBq)
Radiopurity>99.99%, not including decay products
PRODUCTION
Source227Ac nitrate
ProcessingIon exchange separation
DISTRIBUTION
ShipmentShielded screw-cap vial
AvailabilityIn stock
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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