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Examples of Contingency Analyses cont'd
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Guidelines For Preparing Criticality Safety Evaluations at Department of Energy Non-Reactor Nuclear Facilities
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Criticality Safety Evaluation for DistributionTrap F-1202 for Solution Transfer to D-Wng


DOE-STD-3007-93
EXAMPLE # 6
Contingency analysis for a hypothetical process area operation involving
loading of fissile parts into a container where flooding is incredible (i.e., there
are no liquid sources and container cannot hold liquid).
Controls
Control Parameter
No.
Description
Number of Parts
Administratively controlled
limits & requirements
1.
Limit on number of parts in
loading area.
2.
Limit on number of parts in
container.
OR
Mass of Parts
Administratively controlled
limits & requirements
1.
Limit on mass of parts
2.
Mass verification of parts
(Weighing Requirements)
Examples of criticality safety evaluations that have been adapted to follow the Department of
Energy Non-Reactor Nuclear Facility Guidelines for preparing Criticality Safety Evaluations are
included in this section. These evaluations were prepared at various DOE facilities. They are
presented here for illustration purposes only, with no endorsement of fissile material limits or the
methods of derivation. Use of these examples for other purposes (i.e., quoting results to
demonstrate the safety of other systems or use of requirements that may apply only to specific
facilities) is not authorized. Document Control Numbers, review and approval signatures,
implementation documentation, etc., are not addressed in these guidelines and are not illustrated
in these examples.
Notes contained in brackets [ ] either relate information contained within an example to the
guidelines or highlight illustrative weaknesses in an example.
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