Production of thorium-229 using helium nuclei

Induced nuclear reactions: processes – systems – and elements – Nuclear transmutation – Gamma or charged particle activation analysis

Reexamination Certificate

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C376S156000, C376S190000

Reexamination Certificate

active

07852975

ABSTRACT:
A method for producing229Th includes the steps of providing226Ra as a target material, and bombarding the target material with alpha particles, helium-3, or neutrons to form229Th. When neutrons are used, the neutrons preferably include an epithermal neutron flux of at least 1×1013n s−1·cm−2.228Ra can also be bombarded with thermal and/or energetic neutrons to result in a neutron capture reaction to form229Th. Using230Th as a target material,229Th can be formed using neutron, gamma ray, proton or deuteron bombardment.

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