Optimisation Studies of Accelerator Driven Fertile to Fissile Conversion Rates in Thorium Fuel Cycle

The need for proliferation-resistance, longer fuel cycles,
higher burn up and improvedwaste form characteristics has
led to a renewed worldwide interest in thorium-based fuels
and fuel cycles. In this paper the GEANT4 Monte Carlo
code has been used to simulate the Thorium-Uranium fuel
cycle. The accelerator driven fertile to fissile conversion
rates have been calculated for various geometries. Several
new classes have been added by the authors to the
GEANT4 simulation code, an extension which allows the
state-of-the-art code to be used for