I'm currently a Nuclear engineering student in the US. I'm at the point where I need to begin doing research and am torn between the radiation health side of things and the energy side. I honestly love both so I came here to ask a few questions to help determine my research choice. Also I know there's the possibility to go either way in grad school but I believe doing research now in the more related field would be beneficial to which ever I choose. 1) From the energy side I'm interested in reactor designs that eliminate the waste issue or greatly reduce it. One thing I'm ignorant about is the salary of someone with a PhD in nuclear engineering. I understand it can range vastly but I'd take comfort in knowing that if I pursue this path I'll be able to pay off student loans and live quite comfortably. 2) No one can predict the future but how long will medicine physics be around? When I ask this I am mostly referring the radiation therapy side. As technology advances wouldn't it make sense to move towards an alternative that doesn't involving potential damaging healthy cells. (I understand cancer is very diverse and there is no one solution, and also that radiation isn't as harmful as many might believe but it can still be potent). Thanks in advance.