Development of MCMC/MCEF codes for spallation reaction studies and its utilization for ADS (accelerator driven system) studies - Anéfalos, S; Deppman, Airton; Arruda Neto, João Dias de Toledo; Likhachev, Vladimir Petrovich; Santos, A; Coelho, P R P; Duarte, S B; Tavares, O A P (Reunião de Trabalho Sobre Física Nuclear no Brasil, 2003)