@techreport{TechReport_2026_LANL_LA-UR-26-23119Rev.1_KuleszaAdamsEtAl, address = {Los Alamos, NM, USA}, author = {Kulesza, Joel Aaron and Adams, Terry R. and Armstrong, Jerawan Chudoung and Bolding, Simon R. and Brown, Forrest Brooks and Bull, Jeffrey S. and Burke, Timothy Patrick and Clark, Alexander Rich and Forster, III, Robert Arthur and Giron, Jesse Frank and Grieve, Avery S. and Josey, Colin James and Lively, Michael Aaron and Martz, Roger Lee and McKinney, Gregg W. and Pearson, Eric J. and Rising, Michael Evan and Solomon, Jr., Clell Jeffrey and Swaminarayan, Sriram and Sweezy, Jeremy Ed and Trahan, Travis John and Vaquer, Pablo Andres and Weaver, Colin Andrew and Wilson, Stephen Christian and Zukaitis, Anthony J.}, doi = {10.2172/3365149}, institution = {Los Alamos National Laboratory}, month = {May}, number = {LA-UR-26-23119, Rev.~1}, title = {{MCNP\textsuperscript{\textregistered} Code Version 6.3.2 Theory \& User Manual}}, url = {https://www.osti.gov/biblio/3365149}, year = {2026} }