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nureg/cr-6700 - Oak Ridge National Laboratory

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Section 3 Criticality Safety<br />

0.1<br />

Absorption Fraction<br />

0.01<br />

rh103<br />

nd143<br />

gd155<br />

sm149<br />

cs133<br />

xe131<br />

tc 99<br />

sm152<br />

eu153<br />

nd145<br />

ag109<br />

sm147<br />

mo 95<br />

eu151<br />

sm150<br />

ru101<br />

sm151<br />

pd105<br />

0.001<br />

0 20 40 60 80<br />

Burnup (GWd/t)<br />

Figure 6 Fraction of total neutron absorptions from fission products for 5-wt % PWR fuel, 100-year cooling<br />

15

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