Hafnium is an element that has high capture cross section across multiple isotopes.
armi.materials.hafnium.
Hafnium
Bases: armi.materials.material.Material
armi.materials.material.Material
name
setDefaultMassFracs
mass fractions
density
http://www.lenntech.com/periodic/elements/hf.htm
paramCollectionType
alias of armi.reactor.parameters.parameterCollections.MaterialParameterCollection
armi.reactor.parameters.parameterCollections.MaterialParameterCollection