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Nuclear Forensic Analysis, Second Edition, 2nd Edition
book

Nuclear Forensic Analysis, Second Edition, 2nd Edition

by Kenton J. Moody, Patrick M. Grant, Ian D. Hutcheon
December 2014
Intermediate to advanced content levelIntermediate to advanced
524 pages
20h 21m
English
CRC Press
Content preview from Nuclear Forensic Analysis, Second Edition, 2nd Edition
117Engineering Issues
level, with reactors fueled by
235
U being the easiest to control. If a reactor becomes
“prompt-critical” at any point in its operation (k
prompt
≥ 1), the delayed neutrons no
longer provide a means of control.
Another
issue affecting the control of a reactor is the production of long-lived
neutron poisons during its operation. The most important of these is the 9-h ssion
product
135
Xe, which is not only produced directly, but also arises from the β decay of
the 7-h
135
I ssion product.
135
Xe has an enormous cross section for capture reactions
with thermal neutrons:
135 136
3 106Xe n Xe b
th
( , ) ,γ σ = × .
A
reactor operati ...
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Publisher Resources

ISBN: 9781439880616