Dosimetry and Medical Radiation Physics (DMRP)

International Measurement System

The International Measurement System (IMS) for Radiation Dosimetry guarantees the traceability of field instruments (Users) to Primary Standards (PSDLs) through Secondary Standard Dosimetry Laboratories (SSDLs) and the IAEA's Dosimetry Laboratory. The link of SSDLs to Radiation Dosimetry Standards is different in the various countries: some have their instruments calibrated at the BIPM, others at PSDLs, and others at the IAEA.