DETERMINATION OF INVENTORIES AND POWER DISTRIBUTIONS FOR THE NSBR.

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DETERMINATION OF INVENTORIES AND POWER DISTRIBUTIONS FOR THE NSBR.

A.L. Hanson,D.J. Diamond-2005-09-12-University of North Texas Digital Library (University of North Texas)

TL;DRAbstract

This memo presents the details of the methodology for developing fuel inventories for the NBSR along with power distributions predicted with this set of inventories. Several improvements have been made to the MCNP model of the NBSR since a set of calculations was performed in 2002 in support of the NBSR relicensing and SAR update. One of the most significant changes in the model was to divide the fuel elements into upper and lower halves so the effects of uneven burn between the two halves (due to the shim arms) can be determined. The present set of power distributions are provided for comparison with the previous safety analyses.

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This memo presents the details of the methodology for developing fuel inventories for the NBSR along with power distributions predicted with this set of inventories. Several improvements have been made to the MCNP model of the NBSR since a set of calculations was performed in 2002 in support of the NBSR relicensing and SAR update. One of the most significant changes in the model was to divide the fuel elements into upper and lower halves so the effects of uneven burn between the two halves (due to the shim arms) can be determined. The present set of power distributions are provided for comparison with the previous safety analyses.

Keywords

Shim (computing)Environmental scienceSet (abstract data type)Computer science

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