DOE Fundamentals Handbook Chemistry Volume 2 of 2
= DOE Fundamentals Handbook Chemistry Volume 2 of 2
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https://www.energy.gov/sites/default/files/2026-04/DOE-HDBK-1015-93_VOL2.pdf
DOE-HDBK-1015/2-93, Reactor Water Chemistry, CH-03 page24: Table2 hydrogen isotopes and Disintegration subsection. Tritium beta decay yields helium-3 and an antineutrino; half-life table gives12.32years. Use approximate half-life only, not a claim of the latest evaluated value.