UO2 (4.5% enriched)

UO₂

Fuels

Density: 10.97 g/cm³

Uranium dioxide at 4.5 wt% U-235 enrichment. Common in high-burnup PWR fuel assemblies.

Composition

Nuclide / Element	Fraction
U-235	0.015000
U-238	0.318333
O-16	0.666667

Code output

MCNP

c UO2 (4.5 wt% U-235 enriched)
c Density: 10.97 g/cm3 (use -10.97 on cell card)
m2    92235.80c  0.015000  $ U-235
      92238.80c  0.318333  $ U-238
       8016.80c  0.666667  $ O-16

Notes

Theoretical density. Adjust for pellet porosity (typically 94–96% TD).

← Back to Materials Library