Pocket dosimeters should be recharged at what frequency?

Pocket dosimeters are designed to measure the amount of ionizing radiation exposure an individual receives during their work in radiation environments. These devices typically utilize an electrostatic charge to maintain their readings, which means that they can be reset or "recharged" to ensure accurate measurements.

Recharging pocket dosimeters at the start of each work shift is essential because it establishes a baseline reading for the operator's radiation exposure for that specific shift. By doing so, the dosimeter can accurately track and record any additional exposure that occurs throughout the work period.

If pocket dosimeters were recharged at different intervals or during the shift, it could lead to misinterpretation of the radiation dose received, as it would not accurately reflect the exposure occurring during the designated working hours. Therefore, recharging at the start of each work shift is the appropriate practice to ensure reliable monitoring of radiation exposure.