Is TLD used elsewhere?

TLD is also employed in personal radiation monitoring of radiation workers in Hong Kong. All radiation workers who operate x-ray machines, administer radiation therapy, or are exposed to sources of gamma or high-energy beta radiation are generally required to wear one or more TLDs. The TLDs may be of a whole body type and/or a finger type. Their received dose will be read out from their personal TLDs on a regular basis. In Hong Kong, the Radiation Health Unit of Department of Health provides a centralized personnel radiation monitoring service to monitor the radiation exposure received by workers to ensure their overall exposure falls within the limits prescribed by law.