is harder to use for weapons purposes than uranium-235 or plutonium-239. This means there is less of a risk its wider use will pose a proliferation risk. The thorium fuel cycle also produces less ...

It either must be enriched—made more concentrated in a rare form of uranium (U-235)—or converted into plutonium (Pu-239). Heavy water can play a role in breeding weapons-grade plutonium from ...

But if uranium 238 can be encouraged to absorb a slow neutron in a reactor, it becomes the unstable isotope uranium 239. This undergoes the nuclear reaction called beta decay, where a neutron turns ...

In this capacity he had supervision of the research and development connected with, and the design, construction and ...