Speaker
Description
CNESTEN (National Center for Nuclear Energy, Sciences and Techniques) is the national centre for the collection and management of radioactive waste. Consequently, the center receives the 99m Tc generators and smoke detectors that are no longer usable in all regions of Morocco, in order to manage them according to well defined procedures.
As soon as a client (clinic, hospital centre, company, etc.) solicits CNESTEN, and after obtaining the authorisation from the regulatory body, the collection of radioactive waste is carried out in accordance with the radiation protection measures defined for each step of the collection.
Once the radioactive waste management facility receives the 99m Tc generators and/or smoke detectors, they are stored until dismantling. For the dismantling of these two types of waste, a study of the workstation was carried out in order to establish adequate radiation protection instructions to keep the individual and collective doses likely to be generated as low as reasonably possible, to protect workers from the harmful effects of ionizing radiation. Therefore, these detailed instructions for each phase of dismantling will be the subject of a poster at the conference on the Safety of Radioactive Waste Management, Decommissioning, Environmental Protection and Remediation : Ensuring Safety and Enabling Sustainability.
The main phases of dismantling are :
• Dose rates Control and contamination control of generators and/or smoke detectors ;
• Remove any radioactivity signs ;
• Open the frame with a screwdriver and pliers ;
• Remove parts by controlling contamination ;
• Put each part in the dedicated container ;
• Place radioactive sources in specific containers ;
• Control contamination (equipment, worktop and manipulator, hands, gown, gloves, etc.).
