pub fn mat_number(isotope: &Isotope) -> Option<u32>Expand description
Look up the ENDF MAT number for a ground-state isotope.
Covers 535 isotopes from the ENDF/B-VIII.0 neutrons sublibrary
(via the endf-mat crate). This replaces the previous hand-coded
47-entry table and fixes several incorrect MAT values (Cd-113,
Hf-177/178, W-182/183/184/186 were off by one isotope offset).