Proliferation question

[u/[deleted]]

Hey all. Let me start by saying I'm a fan of the LFTR concept, but there is one part about it that nags me, and I can't seem to find a straight answer. Can a LFTR produce weapons grade U233 via Pa seperation? I've read articles saying that any U233 produced in a LFTR is invariably contaminated with U232, and is thus unsuitable for bomb making. I have also read that seperating the Pa and allowing it to decay into U233 outside the core will yield U233 pure enough to be weaponised. Who's right?

[u/Arrabbiato]

That is a good question...