Neutronic design of200 MW(t) Pb cooled fast reactor which life time 20 years have been performed using FI-ITBCHIsoftware package . The constraint parameter of the design is excess reactivity not exceeded 0.2 ?k/k %.The excess reactivity of this design is 0.174 ?k/k % and the dimension in the axial direction is greater than radial direction.Epung Saepul Bahrum*, Zaki Su’ud*, Abdul waris*, Bambang Ari Wahjoedi**; * Jurusan Fisika ITB ** Jurusan Kimia ITB
