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|  Radiological Assessor Training
DOE-HDBK-1141-2001
Instructor's Guide
Show OT 7.1 and OT 7.2.
I.
Introduction
State objectives.
II.
Radiological aspects of tritium
Show OT 7.3.
A. There are three primary sources of tritium.
These are:
1. Environmental sources - Reactions between
cosmic rays and the upper atmosphere
14
N + 1n
3
H + 12C
2
H + 2H
3
H + 1H
2. By-product of power reactors
Ternary fission - A fission event resulting
in fission fragments, one of which is
tritium. Occurrence typically has a 0.1%
yield.
B-10 (n, 2 alpha) 3H
Li-7 (n, n alpha) 3H
3. DOE production of tritium (Hanford,
Savannah River reactors) is by the following
reaction:
6
Li + 1n
3
H + alpha
Module 7 3
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