@techreport{TechReport_2021_PNNL_PNNL-15870Rev.2_DetwilerMcConnEtAl, address = {Richland, WA, USA}, author = {Detwiler, Rebecca S. and McConn, Jr., Ronald J. and Grimes, Thomas F. and Upton, Scott A. and Engel, Eric J.}, doi = {10.2172/1782721}, institution = {Pacific Northwest National Laboratory}, number = {PNNL-15870, Rev.~2}, title = {{Compendium of Material Composition Data for Radiation Transport Modeling}}, url = {https://www.osti.gov/biblio/1782721}, year = {2021} }