Two-Dimensional Neutronics Analysis of the Tokamak Fusion Test Reactor

摘要

The nuclear performance of the TFTR has been studied using two-dimensional radiation transport methods. The calculations were carried out using the two-dimensional discrete ordinates code DOT using S sub 8 angular quadrature and a P sub 3 expansion of the transport cross-section data. The cross sections were taken from the DLC-37 library and collapsed to a 35-neutron--21-gamma-ray energy group subset to facilitate the calculations. The TFTR and the concrete pillbox-shaped shield that surrounds the reactor assembly were modelled using r-z geometry with toroidal symmetry about the z-axis. The components were described using 61 radical and 38 axial mesh intervals. The dimensions and spatial location of the D-T plasma, the dimensions and compositions of the reactor components and other relevant TFTR parameters are summarized. (ERA citation 03:025469)