[dede175]

Excuse my lack of knowledge on the subject, but from a few comments/articles it seemed that although Tritium can be recuperated through contact of the charged neutrons with lithium "blankets" surrounding the enclosure, it is still incredibly hard to achieve self-sustainability, to the point where we might need fission reactors just to produce that isotope. Am I missing something or isn't Tritium not so readily available?

[lambdatronics]

The margins for 'breeding' tritium from lithium are slim, yes. I don't think fission reactors can help in the long term, but right now that is how we get tritium for our experiments.