Radium-224/Lead-212 Generator

Related Products:   Radium-223  Radium-225
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ISOTOPE    224Ra/212Pb Generator
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Half Life / Daughter3.66 days to Pb-212 daughter,
Pb-212 to Bi-212 daughter 10.64 hours,
Bi-212 to Pb-208 (stable) 60.6 minutes
Decay ModeMultiple alpha and beta emissions to stable Pb-208
Major RadiationAlpha - 8.79 MeV
Beta – 560 keV
Gamma – 238.6, 583.0, 2614.4
keV
FormRa-224 absorbed on AG MP50 resin
ActivityRa-224: 1.59 x 105 Ci/g (specific activity);
Pb-212: 1.39 x 106 Ci/g;
Bi-212: 1.46 x 107 Ci/g
Radiopurity>99.8 % Ra-224; <0.2 % Th-228
PRODUCTION
SourceDecay of thorium-228 (t1/2 = 1.913 years)
ProcessingSeparated by ion exchange
DISTRIBUTION
ShipmentGenerator is housed in a one inch lead pig with inlet/outlet holes
AvailabilityMonthly up to 20 mCi; 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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