This does not present a problem in a small reactor like EBR II but large fast reactor cores tend to have positive void coefficients, resulting in a runaway power excursion
if the sodium boils.
It is considered to be the worst nuclear power plant disaster in history, resulting in a severe release of radioactivity following a massive power excursion
that destroyed the reactor.
OFDM signals without CFR have RF power characteristics similar to that of additive white Gaussian noise (AWGN), with peak power excursions
more than 10 dB above the average power.