Last Updated
：2025/12/08
radioactive equilibrium
Noun
Japanese Meaning
放射性核種間の崩壊速度が平衡状態に達している状態。特に、親核種の半減期が娘核種のそれに比べて非常に長いため、一定の期間、親と娘の放射能がほぼ同じレベルに保たれる現象。 / 世俗平衡とも呼ばれ、放射性変化において、親核種とその崩壊生成物との生成率と消滅率が釣り合い、全体として定常状態が維持される状態。
Sense（1）
（ plural ）
（ plural ）
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Synonym of secular equilibrium
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radioactive equilibrium
In a long-lived parent-daughter decay series, radioactive equilibrium is established when the daughter nuclide's production rate equals its decay rate.
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In a long-lived parent-daughter decay series, radioactive equilibrium is established when the daughter nuclide's production rate equals its decay rate.
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