Triton Mass Energy

The rest energy of the triton, 2808.92 MeV — the hydrogen-3 nucleus at the heart of fusion fuel.

Specifications & Metrics

symbol

mtc²

status

Measured — CODATA 2022 adjustment

value

2808.92113668 ± 8.8 × 10⁻⁷ MeV

Relative Scale in Constants

Core Principles & Analysis

• One proton and two neutrons, beta-decaying to helium-3 with a 12.3-year half-life.
• The D–T reaction releasing 17.6 MeV powers every fusion reactor design on the table.
• Its 18.6 keV decay electron made tritium the classic beta-decay end-point experiment.