Progress In the Development of WIMS at Chalk River

Abstract

UIMS is a multigroup lattice code originally developed by the UKAEA (Winfrith) in the middle 1960's. This paper reviews the developments that have been made in the code a t Chalk River Nuclear Laboratories, the increasingly wide range of applications in which it is being used and the recent use of nuclear data from ENDF/B-V in WIMS.