Error in materials build using add elements from formula

[jeep96]

UOx = openmc.Material(name=“UO2”)
UOx.set_density(‘g/cm3’,10.0)
UOx.add_elements_from_formula(‘UO2’,‘ao’,enrichment=1.5)
print(UOx)
uo2 = openmc.Material(name=‘UO2’)
uo2.add_element(‘U’, 1.0, enrichment=1.5)
uo2.add_element(‘O’, 2.0)
uo2.set_density(‘g/cc’, 10.0)
print(uo2)

Running the code snippet above, I get two different answers. I noticed something was amiss when trying to use “UF4” as a material build from a formula

[Jarret]

Hi Jeep,

It’s due to normalization, they are actually the same result but one is just 3 times as much as the other, but since its 3 times across each value the relative ratio between the nuclide’s remain the same.