Last Updated
：2025/11/26
subcritical mass
（ plural ）
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(physics) A mass of fissile material that is insufficient to sustain a nuclear chain reaction.
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subcritical mass
The technicians kept the fissile material in separate containers, each deliberately maintained at a subcritical mass to eliminate the risk of an accidental chain reaction.
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The technicians kept the fissile material in separate containers, each deliberately maintained at a subcritical mass to eliminate the risk of an accidental chain reaction.
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