Counts per Minute (CPM)

Counts per Minute (CPM) is a measurement used to quantify the activity level of a radiation detector, indicating how many radioactive decay events are recorded each minute. Essentially, it reflects the rate at which the detector detects particles emitted by radioactive sources. Higher CPM values suggest higher radioactivity levels, while lower values indicate less activity. CPM is commonly used in fields like environmental monitoring, health physics, and radiology to assess contamination or exposure risks accurately and efficiently.