I am being asked the following question for a homework: "Uranium 238 is not fissible, but it is fertile. If you have 10,000 kg of Uranium, how enriched would it need to be in order to theoretically convert all of the uranium 238 into plutonium?"
I have no idea where to begin, and I would like guidance on what book/article/lecture notes should I read to try and tackle this problem. Maybe some hint at the solution. Does the answer need to be estimated with the plutonium breeding ratio? Do I need to use the mean free path for the neutron absorption?