Disintegrations per second

Dr Daniel J Bell et al.

Disintegrations per second (dps), also known as decays per second, represents the number of atoms of a radioactive isotope that decay per second. One becquerel is equivalent to one disintegration per second. 

Counts per second (cps) is the number of disintegrations per second, as measured by a radiation detector. This detector will not be perfect i.e. it will not detect all the decays. Therefore the counts per second is less than the disintegrations per second.

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Article information

rID: 58698
Section: Physics
Synonyms or Alternate Spellings:
  • DPS

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