NUREG-1537, Part 2 - NRC

Ewaluation Findings
REACTOR DESCPON
This section of the SAR should contain sufficient information to support the
following types of conclusions, which will appear in the staffs safety evaluation
report:
The applicant has described the proposed initial core configuration and
analyzed all reactivity conditions. These analyses also include other
possible core configurations planned during the life of the reactor. The
assumptions and methods used have been justified and validated.
* The analyses include reactivity and geometry changes resulting from'
burnup, plutonium buildup, and the use of poisons, as applicable.
* The reactivity analyses include'the ravity values for the core
components, such as fuel elements, control rods,'reflector components, and
such incore and in-reflector components as experimental facilities. The
assumptions and methods used have been justified.'
* The analyses address the steady power operation and kinetic behavior of
the reactor and show that the dynamic response of the control rods and
instrumentation is designed to prevent uncontrolled reactor transients.
* The analyses show that any incore components that could be flooded or
voided could not cause reactor transients beyond the capabilities of the
instrumentation and control systems to prevent fuel damage or other
reactor'damage. '
* The analyses address a limiting core that is the minimum size possible with
the planned fuel. Since this core configuration has the highest power
density, the applicant uses it in Section 4.6 of the SAR to determine the
limiting thermal-hydraulic characteristics for the reactor.'
* The analyses and information in this section describe a reactor core system
that could be designed, bult, and'operated without mcceptabie risk to the
-health'and safety ofthe public.' " '
* The applicant has justified appropriate limiting conditions for operation and
surveillance requirements for minimal opirating' conditions and included
theni in the technical specifications. The applicant has also justified the
-'proposed technical specifications;.-
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