Overpressure.
While feeding a reaction too much will kill it, feeding it JUST enough will help build the reaction to the point where the reactor can't take the energy and the reaction plasma violently breaches. While breaching kills the reaction, stellar core temperature plasma still is more than enough to vaporise material and the pressure wave of such a breach will 'pop' most asteroid settlements like a balloon.
After the first handful of these happened[ref]setting off alarms all over Fenspace even with warnings[/ref] with 'boskone' hidden bases it has become standard procedure on detection of unknown deuterium/Helium-3 in an un-registe4rd habitat to secure the reactor core(s) and check for sabotage in the reactor core without letting it power up.
The introduction of the Whole Fenspace Catalogue killed off most handwave-based fusion systems, which is what allows most of the bad sides of Fusion to manifest.
While feeding a reaction too much will kill it, feeding it JUST enough will help build the reaction to the point where the reactor can't take the energy and the reaction plasma violently breaches. While breaching kills the reaction, stellar core temperature plasma still is more than enough to vaporise material and the pressure wave of such a breach will 'pop' most asteroid settlements like a balloon.
After the first handful of these happened[ref]setting off alarms all over Fenspace even with warnings[/ref] with 'boskone' hidden bases it has become standard procedure on detection of unknown deuterium/Helium-3 in an un-registe4rd habitat to secure the reactor core(s) and check for sabotage in the reactor core without letting it power up.
The introduction of the Whole Fenspace Catalogue killed off most handwave-based fusion systems, which is what allows most of the bad sides of Fusion to manifest.