Bug Description
Since depletion chains store the target for the spontaneous fission decay mode as the isotope itself (shown below) these end up being added back along the diagonal as a "source" when constructing the burnup matrix which incorrectly decreases the destruction rate that would normally be there. It's a very small effect typically, but ultimately should be corrected.
<nuclide name="Cf252" half_life="83468070.0" decay_modes="2" decay_energy="6032280.0" reactions="5">
<decay type="alpha" target="Cm248" branching_ratio="0.96908"/>
<decay type="sf" target="Cf252" branching_ratio="0.03092"/>
Steps to Reproduce
Environment
Bug Description
Since depletion chains store the
targetfor the spontaneous fission decay mode as the isotope itself (shown below) these end up being added back along the diagonal as a "source" when constructing the burnup matrix which incorrectly decreases the destruction rate that would normally be there. It's a very small effect typically, but ultimately should be corrected.Steps to Reproduce
Environment