disintegration per minute
Radioactivityexact by definition
A disintegration per minute is exactly 1/60 becquerel. Liquid scintillation counting reports in dpm, because a counter measures counts per minute and divides by the detection efficiency to get dpm; the whole workflow of tritium and carbon-14 work is built on the unit.
Watch out: Counts per minute is NOT disintegrations per minute and is not a unit of activity at all: it depends on the detector, the geometry and the quench in the sample. Only after dividing by a measured efficiency does cpm become dpm. A tritium sample counted at 40% efficiency reads 400 cpm for 1000 dpm.
| 1 | 0.016666667 |
One disintegration per minute in every radioactivity unit
| 16.6667 | millibecquerel (mBq) | |
| 1 | disintegration per minute (dpm)this unit | |
| 0.45045 | picocurie (pCi) | |
| 0.0166667 | becquerel (Bq) | |
| 0.0166667 | disintegration per second (dps) | |
| 0.00045045 | nanocurie (nCi) | |
| 0.0000166667 | kilobecquerel (kBq) | |
| 4.50450e-07 | microcurie (μCi) | |
| 1.66667e-08 | megabecquerel (MBq) | |
| 1.66667e-08 | rutherford (Rd) | |
| 4.50450e-10 | millicurie (mCi) | |
| 1.66667e-11 | gigabecquerel (GBq) | |
| 4.50450e-13 | curie (Ci) | |
| 1.66667e-14 | terabecquerel (TBq) | |
| 4.50450e-16 | kilocurie (kCi) | |
| 1.66667e-17 | petabecquerel (PBq) |
Solvers that use radioactivity