Permanent Equilibrium

Japanese: 永続平衡 - えいぞくへいこう
Permanent Equilibrium

…This state is called transient equilibrium. Next, when λ B ≫ λ A , N B / N A is equal to λ AB , and since N B λ BN A λ A , the radioactivity of A and B is equal, and this state is called permanent equilibrium. Transient equilibrium and permanent equilibrium together are called radioactive equilibrium. …

*Some of the terminology explanations that mention "permanent equilibrium" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…このような状態を過渡平衡という。 次にλB≫λAの場合には,NB/NAはλABに等しく,NBλBNAλAが成り立つのでA,Bの放射能は等しいことになり,この状態を永続平衡という。過渡平衡と永続平衡を合わせて放射平衡という。…

※「永続平衡」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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