An astrophysicist uses a portable radiation detector to measure the ambient cosmic ray background in a high-altitude observatory.
The background radiation count rate is recorded as 0.64 counts per second0.64\text{ counts per second}0.64 counts per second.
A cosmic-ray muon calibration source is then positioned directly beneath the detector's sensor.
The new reading on the detector's display is 14.11 counts per second14.11\text{ counts per second}14.11 counts per second.
Calculate the corrected count rate, in counts per second, detected from the muon calibration source alone.