tritium

Domaine: physiqueénergie nucléaire
Date: 1987

Définition :

Isotope de l'hydrogène de nombre de masse 3, émetteur ß- de période 12,37, d'énergie 0,018 MeV.

Note :

Il est utilisé dans de nombreuses molécules marquées. Ses plus grandes applications se font en météorologie et en hydrologie.

Termes :

tritium n. m.
T

Traductions

anglais
Date : 1987
Définition

A radioactive isotope of hydrogen with two neutrons and one proton in the nucleus.

The only artificial radioactive isotope of hydrogen (H3); its nucleus contains two neutrons and one proton, giving an atomic weight of 3.017,

Notes :

It is man-made and is havier than deuterium (heavy hydrogen). Tritium is used in industrial thickness gauges and has a label in experiments in chemistry and biology. Its nucleus is a triton.

It is made by impingement of slow neutrons on lithium nuclei and has a half-life of about 12 years. It is used to induce thermonuclear (fusion) reactions, as well as in biochemical tracer work and specialized research. Its nucleus is called a triton.

Termes :
1. tritium
2. T