TY - RPRT TI - MCNP6® Recent Updates on Modernization, R&D, and Release Plans AU - Rising, Michael Evan AU - Alwin, Jennifer Louise AU - Brown, Forrest B. AU - Perfetti, Christopher M. AU - Riedel, Bobbi AU - Spencer, Kristina Diane Yancey AU - Timmons, Daniel PY - 2021 UR - https://www.osti.gov/biblio/1827542 ID - 1827542 ER -