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National Dosimetry and Calibration Laboratory (NDCL)Nuclear material and radioactive sources are widely used for the benefit of mankind mainly in nuclear power plants for electricity generation, hospitals for diagnosis and treatment, industries, research and development activities in the country. In spite of observing safety precautions during the operation of nuclear installation and radiation facilities, there are chances that radiation workers may be exposed to radiation which could be hazardous for their health. Therefore, monitoring of radiation exposure is very important for taking necessary protective measures to avoid any over exposure. PNRA requires that the radiation workers should be monitored for occupational exposure in order to be vigilant of radiation doses. External DosimetryExternal dosimetry laboratories (labs), established at Islamabad and Karachi are used for monitoring of external doses of radiation workers at the licensed facilities. These labs are equipped with Thermo-Luminescent Dosimeter (TLD) Readers, Whole Body and Extremity TLDs and employs Thermo-Luminescent Dosimetry technique for measuring external exposure to radiation workers. Internal DosimetryInternal Dosimetry Laboratories have been established in Islamabad, Chashma and Karachi. These labs are capable to assess the ingested or inhaled radio-nuclides through direct as well as indirect methods. Protection Level CalibrationProtection Level Calibration setup has been established at PNRA for calibration of radiation detection equipment according to international practices. This setup is equipped with gamma irradiators, ionization chambers and calibration phantoms. This arrangement has enabled PNRA to ensure through cross verification that the equipment used by the licensees of nuclear installations and radiation facilities for radiation dose monitoring are appropriately calibrated and the results are accurate. |