How often must dosimeters be calibrated?

Dosimeters must be calibrated annually to ensure their accuracy and reliability in measuring radiation exposure. Calibration is a critical process that verifies the dosimeter's response to known radiation levels, which can change over time due to factors such as environmental conditions or the aging of the device.

By calibrating dosimeters each year, facilities ensure that the devices are providing precise measurements, which is essential for maintaining safety standards in radiation environments. Regular calibration helps detect any deviations or malfunctions in the dosimeter's function, protecting individuals who are exposed to radiation in their work.

Choosing an interval shorter than a year may not always be necessary and could lead to excessive operational costs, while longer intervals might allow errors to go uncorrected for too long, potentially compromising safety. Thus, annual calibration strikes a balance between operational efficiency and safety assurance.