CPM
1
7.7
- noun
- Specialized
:
conteos por minuto
- When I work with radioactive isotopes in the lab, 30 cpm is pretty much what I get as the absolute minimum background when things are clean.
Examples
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Baseline (i.e., natural background), also from the Geiger graph site readings from December, is about 10-30 CPM.
Blog text (20) -
When measuring radiation levels, the Geiger counter recorded 50 cpm, indicating a safe environment.
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In the middle of the tip section, represented by the 16" measurement, a difference of 30-40 cpm usually accounts for a visible difference in the launch angle, trajectory, and spin rate of the shot.
Blog text (33) -
Anything under 100 cpm (0.03 mR/h for my setup) or so is generally sufficiently clean that it does not need to be decontaminated (according to the radiation safety office at my current institution and at previous institutions I've worked at).
Blog text (20) -
The technician noted an increase to 100 cpm while testing the sensor's response to a stronger radiation source.
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For the experiment to be valid, the readings must average at least 20 cpm over the observation period.
Synonyms
Number of events that happen in one minute
A number that shows how many events happen in one minute
The number of pulses in one minute
A measure showing how many events happen in a set time
Surface Forms
Morphology
CPM = C + P + M
An initialism (C P M) standing for a units phrase (counts per minute); letters do not transparently convey that measurement sense.
Etymology
In sensors and detectors CPM means counts per minute, or 'how many events are recorded in one minute', so a higher CPM shows more detections each minute.