TY - RPRT TI - A Compact ENDF (ACE) Format Specification AU - Conlin, Jeremy Lloyd [Los Alamos National Laboratory] (ORCID:0000000248145204) AU - Haeck, Wim [Los Alamos National Laboratory] (ORCID:0000000188976603) AU - Romano, Paul [Argonne National Laboratory] PY - 2026 DO - 10.2172/3427064 UR - https://www.osti.gov/biblio/3427064 ID - 3427064 ER -