power excursion

Noun

A criticality accident; an uncontrolled nuclear fission chain reaction.

Japanese Meaning

臨界事故 / 制御不能な核分裂連鎖反応

The reactor safety team quickly contained the power excursion before it could cause widespread contamination.

原子炉の安全チームは、広範な汚染を引き起こす前に臨界事故を迅速に封じ込めた。

Sense（1）

A criticality accident; an uncontrolled nuclear fission chain reaction.

power excursions

（ plural ）