@techreport{TechReport_2025_LANL_LA-UR-25-23077_Lively,
  address = {Los Alamos, NM, USA},
  author = {Lively, Michael Aaron},
  institution = {Los Alamos National Laboratory},
  number = {LA-UR-25-23077},
  title = {{An Update to \delta-ray Production in MCNP6}},
  year = {2025}
}