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Uses of Tritium - HDBK110520020031


DOE-HDBK-1105-2002
Radiological Training for Tritium Facilities
Instructor's Guide
Notes
2.
By-Product of Reactor Sources
Li + 1 n yields
7
0
3
H + 1 n +α
3
1
0
n yields 1 H + 2α
10
1
3
5 B+
a.
Lithium-7 captures a neutron and
0
decays with tritium as a product.
Show OT 24
b.
Boron captures a neutron and
2
H + 1 n yields 1 H
3
1
0
decays with tritium as a product.
c.
Activation of deuterium in water.
d.
Ternary fission - A fission resulting
in three fission products, one of
which is tritium. This process has a
0.1% yield.
The production of tritium from power
reactors around the world is less than
one-half that naturally formed
(approximately 1 to 2 million curies a
year).
3.
Weapons Testing as a Source
Show OT 25
The amount of tritium in the world
from weapons testing has been steadily
declining since the 1970's when
atmospheric testing was curtailed.
Atmospheric testing from 1945-1975
produced about 8 billion curies. This
has decayed to about 400 million
curies.
14


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