Abstract:

Abstract:In this paper,the shielding calculations of one dimensional plate and one dimensional sphericity using deterministic method were studied and a one dimensional steady state neutron transport calculation program DONTRAN1D using discrete S N finite element method (FEM) was developed.In the calculations,a virtual point setting method was proposed when processing the model boundary conditions.In addition,a zeroing modification and a neutron balance calculation using transporte quation were adopted for negative flux.At last,a comparative analysis was conducted between DONTRAN1D and other mature program in the world using calculation examples.The results show that the
solving accuracy of DONTRAN1D could be guaranteed well.Besides that,a mount of functional module interfaces were reserved for future development in DONTRAN1D program.

Key words: Keywords:one dimension, shielding calculation, finite element method, neutron transport calculation