Three-component U-Pu-Th fuel for plutonium irradiation in heavy water reactors Ross Peel, Luc Van Den Durpel, Mark Daniel Ogden and Karl Rhys Whittle EPJ Nuclear Sci. Technol., 2 (2016) 29 Published online: 06 June 2016 DOI: 10.1051/epjn/2016022