What's at the forefront of reactor research? A must-read digest/discussion.

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2. It's a link that doesn't summarize easily

and for that reason, it's worth setting 30 minutes aside and digesting thoroughly along with the comments. Rolled-up shirtsleeve, practical experience with guys who have spent years sitting next to reactors going critical. The comment about the flux shape on LFTRs is typical - what do you do with a tons of hot Pa233 decaying over 27 days until it turns into useable U233? Moderated, your reactor suddenly becomes a bull in a china shop. You can pull it out of the salt, but some of it turns into U232 and starts kicking out gamma rays hot enough to burn hairs off your chest. Is a Brayton cycle turbine going to work in a closed loop?

A measly $billion or four would answer those questions.