That's a good question. I think it ties back into the nation's nuclear strategy and the future of nuclear power R and D in the country. Bluntly speaking, perhaps you can think of the NRU as serving three purposes: medical isotopes, nuclear power R and D, and as a source of neutrons for neutron-scattering science.
Our proposal for the Canadian neutron source focuses on only two of those three: the neutron scattering and the medical isotopes. The issue is that if you want to include the third, if you want to do the power generation R and D, it's a much larger project and a much more significant reactor.
So the answer would be that you could have the medical isotope business and you could have the neutron-scattering science at the facility we've proposed, but right now if you shut down the NRU, you wouldn't have the capability for some of the R and D that's done around power generation.