> Moderator: nuclear graphite This moderator develops cracks during normal operation as seen in UK's AGR several other designs. And it burns in case of an acci

> Moderator: nuclear graphite This moderator develops cracks during normal operation as seen in UK's AGR several other designs. And it burns in case of an accident (Windscale, Chernobyl). Since the TMSR-LF1 is an experimental project I also assume that it's a single fluid design? More detailed information on the TMSR-LF1 is quite hard to find but it says that it's based on the original Oak Ridge MSR design. "Old proposed single fluid designs promising breeding performance tend to have an unsafe positive void coefficient and often assume excessive fuel cleaning to be economic viable." https://en.wikipedia.org/wiki/Liquid_fluoride_thorium_reactor https://en.wikipedia.org/wiki/Liquid_fluoride_thorium_reacto...