The History of Continuous Improvements for the Dosimetry Calibrations at SCK CEN Belgium

Photon and neutron dosimetry calibrations are performed at the Laboratory for Nuclear Calibrations (LNK) of the Belgian Nuclear Research Centre (SCK CEN) since 1985. Supposedly, calibrations were even done in the so-called wooden tower since the 1960s. It started as an internal service for calibration of
dosemeters and monitors. Slowly, the service extended to calibrations for external customers and to irradiations of samples for dosimetry, radiobiology, and radioecology research. The Laboratory obtained its first accreditation for compliance with ISO/IEC 17025 around 2004. In 2009, LNK started to perform
calibrations of radiotherapy ionisation chambers in terms of air kerma (primary standard) and absorbed dose to water (secondary standard). In 2012, LNK
became the Designated Institute (DI) for the metrology of ionizing radiation in Belgium, a member of BIPM
and a member of the IAEA/WHO SSDL Network – all
important milestones