Radiological Training for Tritium Facilities
H + 1 H → 3He + 1 n
1 mev per fusion
Fusion is the process of two nuclei joining
together. The energy source in most stars is
Show OT 21
nuclear fusion of hydrogen isotopes.
H + 1 H → 4He + 1 n
17 mev per fusion
Show OT 22
SOURCES AND USES OF TRITIUM
Show OT 23
How is tritium produced and what is it used for?
Modes of production:
A. Sources of Tritium
1. The nitrogen nucleus captures
There are three primary sources of tritium in
a neutron and decays to tritium
our environment. Tritium is present in our
environment from both man-made and natural
sources as discussed below. Natural tritium is
N + 1 n yields
indistinguishable from man-made tritium.
Tritium occurs naturally. It is formed by
the reactions between cosmic rays and the
nitrogen in the upper atmosphere.
Nitrogen makes up 80% of the earths
H + 1 H yields
Cosmic rays generate approximately 4
H + 1H
million curies of tritium per year. With
2. Two hydrogen-2 atoms
tritium being continually produced and at
(deuterium) combine to form
the same time decaying, the natural
tritium and normal hydrogen.
tritium in our environment is about 70