GUARDYAN (GPU Assisted Reactor Dynamic Analysis) is a Monte Carlo based neutrontransport program running on GPU (Graphics Processing Unit). The simulation tracks neutrons in a three dimension space bounded by second degree surfaces while they interact with the isotopes present in the region. Cross Section Data may be given in ACE (A Compact ENDF ) format coming from ENDF (Evaluated Nuclear Data File) cross section table. Keep reading on Guardyan [[Image(VVER440_v1.png)]] ---- GUARDYAN (GPU Assisted Reactor Dynamic Analysis) fejlesztői segédlete [wiki:GuarDyan_fejlesztoi itt található].