this post was submitted on 18 Apr 2025
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Is this real? Pretty cool if they can actually stop the reaction with such
Yes I remember reading about this a while back. It’s one of the main reasons thorium rectors are so much safer.
I remember reading about this one, able to fit in a small area and be moved, but never knew if it was thorium
https://interestingengineering.com/innovation/safe-micro-nuclear-reactor-truck
Haven't read up on much of it, just remembered it in passing.
From what I’ve watched & read, it’s usually depicted as the freeze plug melts and the liquid salt flows into multiple small holding tanks below it. That way the fuel mass will be physically separated, which helps stop fission on top of any other mitigations like lining the containers with neutron absorbers, etc.
It's that thorium is not fissile it's fertile so separating the thorium from the uranium core prevents more thorium from absorbing neutrons.