TY - RPRT TI - A particle-in-cell code comparison for ion acceleration: EPOCH, LSP, and WarpX AU - Smith, Joseph R. AU - Orban, Chris AU - Rahman, Nashad AU - McHugh, Brendan AU - Oropeza, Ricky AU - Chowdhury, Enam A. PY - 2021 DO - 10.1063/5.0053109 UR - https://www.osti.gov/biblio/1853403 ID - 1853403 ER -