@techreport{TechReport_2023_LANL_LA-UR-23-30406Rev.1_GladdenArmstrongEtAl, address = {Los Alamos, NM, USA}, author = {Gladden, Bradley Jo and Armstrong, Jerawan Chudoung and Kelley, Karen Corzine}, institution = {Los Alamos National Laboratory}, month = {September}, number = {LA-UR-23-30406, Rev.~1}, title = {{Athena-I Modeling with MCNP6.3}}, type = {Presentation}, url = {https://www.osti.gov/biblio/2005769}, year = {2023} }