A common source used is the hydrogen isotope, tritium.

Migrations have been studied in more recent times using wing tags and also using stable hydrogen isotopes.

H (atomic mass 1.00782504(7) u) the most common hydrogen isotope with an abundance of more than 99.98%.

The muon may bump the electron from one of the hydrogen isotopes.

Tritium, a hydrogen isotope, can be lethal in very high quantities.

"Edo is powered by the fusion of deuterium, the hydrogen isotope, with helium-3."

The large mass ratio of the hydrogen isotopes makes their separation easy compared to the difficult uranium enrichment process.

The products of nuclear fusion involving deuterons with hydrogen isotopes.

Among the targets Livermore has tested are tiny, hollow glass spheres filled with hydrogen isotopes.

He also published an early paper on the then recently discovered muon-catalyzed fusion of hydrogen isotopes.