Author: Cywinski, R.
Paper Title Page
MOOBA01 Thorium Energy Futures 29
  • S. Peggs, W. Horak, T. Roser
    BNL, Upton, Long Island, New York, USA
  • V.B. Ashley, R.F. Ashworth
    Jacobs Engineering, Pasadena, USA
  • R.J. Barlow, R. Cywinski, R. Seviour
    University of Huddersfield, Huddersfield, United Kingdom
  • J.-L. Biarrotte
    IPN, Orsay, France
  • S. Henderson
    Fermilab, Batavia, USA
  • A. Hutton
    JLAB, Newport News, Virginia, USA
  • J. Kelly
    Thor Energy, Oslo, Norway
  • M. Lindroos
    ESS, Lund, Sweden
  • P.M. McIntyre
    Texas A&M University, College Station, Texas, USA
  • A. Norlin
    IThEO, Sweden
  • H.L. Owen
    STFC/DL/ASTeC, Daresbury, Warrington, Cheshire, United Kingdom
  • G.T. Parks
    University of Cambridge, Cambridge, United Kingdom
  The potential for thorium as an alternative or supplement to uranium in fission power generation has long been recognised, and several reactors, of various types, have already operated using thorium-based fuels. Accelerator Driven Subcritical (ADS) systems have benefits and drawbacks when compared to conventional critical thorium reactors, for both solid and molten salt fuels. None of the four options – liquid or solid, with or without an accelerator – can yet be rated as better or worse than the other three, given today's knowledge. We outline the research that will be necessary to lead to an informed choice.  
slides icon Slides MOOBA01 [3.887 MB]  
THPPR061 Optimisation Studies of Accelerator Driven Fertile to Fissile Conversion Rates in Thorium Fuel Cycle 4112
  • C. Bungau, R.J. Barlow, R. Cywinski
    University of Huddersfield, Huddersfield, United Kingdom
  The need for proliferation-resistance, longer fuel cycles, higher burn up and improved waste 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 the first time for nuclear reactor criticality calculations.  
THPPR076 Optimising Neutron Production From Compact Low Energy Accelerators 4154
  • N. Ratcliffe, R.J. Barlow, A. Bungau, R. Cywinski
    University of Huddersfield, Huddersfield, United Kingdom
  • T.R. Edgecock
    STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
  There is currently much development in accelerator based methods to provide flexible and reliable neutron generators, in response to a decline in the availability of nuclear reactors. In this paper the focus is on neutron production via a low energy DC proton accelerator (1-10 MeV) and light target system. GEANT4 simulations are being used to study various aspects of target design, beginning with studies into light targets, such as lithium and beryllium, which are already in use. Initially the aim is to replicate these designs and benchmark these simulations, with other models and experimental results, before investigating how modifications can improve neutron production and tailor experimental geometries to specific applications such as neutron capture therapy and medical isotope production.