decays per second; disintegrations per second; dps
Obsolete physics term for the unit of radioactivity now replaced by the becquerel (Bq). Used historically for decays or disintegrations per second.
See also: ベクレル
The intensity of radioactivity was once expressed in decays per second.
壊変毎秒はベクレルに置き換えられた古い単位である。
Decays per second is an old unit replaced by the becquerel.
The modern SI unit for radioactivity, equivalent to one decay per second. 壊変毎秒 is the obsolete Japanese term for the same concept.
Compound of 壊変 (kaihen, 'decay, disintegration') and 毎秒 (maibyō, 'per second'). The term is a direct calque of the English 'decays per second' and became obsolete with the adoption of the becquerel.