TY - RPRT TI - Feature Selection Approaches for Gamma Spectroscopy and Weapons-Grade Plutonium Classification AU - Heatherly, Tanner D. [Oregon State University] (ORCID:0000000194643872) AU - Palmer, Camille J. [Oregon State University] (ORCID:0000000275734215) AU - Forland, Brenda M. [Pacific Northwest National Laboratory] (ORCID:000000032976746X) PY - 2026 DO - 10.1080/00295639.2025.2607272 UR - https://www.osti.gov/biblio/3818003 ID - 3818003 ER -