The DOE Isotope Program maintains an extensive inventory of radioactive and stable isotopes. Below are a select few that are currently in inventory and ready to dispense to meet your research and commercial needs. For a complete list visit our product catalog.
Cerium-134
The Department of Energy Isotope Program is the first global supply chain for cerium-134 (Ce-134), enabling emerging technologies and advancing new treatments to combat cancer. Ce-134 is an essential step in advancing the use of alpha emitters for cancer therapy due to its promise as a PET imaging analog for therapeutic actinium-225 and thorium-227 radioisotopes.
Cerium-134 is produced monthly using high-energy proton linear accelerators at both Los Alamos and Brookhaven National Laboratories. Together, these sites enable year-round production of this high impact radionuclide.
Cerium-134 is supplied in a chloride solution of Cerium(III) in 0.1 M HCl. It is shipped in a glass crimp-top v-vial.
Titanium-44
Titanium-44 (Ti-44) may be used as a “generator” for its daughter isotope scandium-44, which can be used in PET imaging to study metabolic processes in the body.
Millicurie quantities of Ti-44 are available for purchase. Titanium-44 (t1/2 = 60.0 yr) is produced at both Brookhaven and Los Alamos National Laboratories through proton bombardment of a natural scandium target. The final product is distributed as Titanium (IV) in 6 M HCl.
Gadolinium-148
Gadolinium-148 (Gd-148) is most commonly used as a tracer for other isotopes of gadolinium and in radiochemistry/physics research.
A batch of Gd-148 has been reprocessed and put into inventory. Gadolinium-148 is produced through proton-induced spallation of tungsten or tantalum targets. The final product is distributed as Gadolinium (III) in 0.1 N HCl.
Silicon-32
Silicon-32 (Si-32) is valuable for understanding and modeling the global climate in marine research. It can also be used in semiconductor manufacturing processes, where silicon isotopes with specific properties are required.
High-purity research-grade Si-32 is now available in microcurie quantities as a result of a joint agreement between the U.S. Department of Energy and TRIUMF. Under this agreement, KCl targets are irradiated using TRIUMF’s 500 MeV irradiation facilities in Vancouver, BC, and irradiated targets are then chemically processed at LANL. The final product is distributed as Silicon (IV) in 0.1 N NaOH with a >99.9% radionuclidic purity.
Barium-133
Barium-133 (Ba-133) is used for various purposes, including as an x-ray radiocontrast agent and as a gamma source in multiphase flow meters used in the oil and gas industry.
Millicurie quantities of Ba-133 are now available for purchase. Barium-133 is produced at Oak Ridge National Laboratory through neutron capture on enriched barium-132 using the High Flux Isotope Reactor.
