EFFECT OF FISSION SOURCE SPECTRUM ON MONTE CARLO CALCULATION OF EX-CORE QUANTITIES Eva E. Davidson, Tara M. Pandya, Katherine E. Royston, Thomas M. Evans, Andrew T. Godfrey, Shane C. Henderson, Gary Wolfram and Joel M. Risner EPJ Web Conf., 247 (2021) 02027 Published online: 22 February 2021 DOI: 10.1051/epjconf/202124702027