Waste characterisation system for low-active waste February 20, 2019 Aim: To develop and validate a waste repository acceptance characterisation system for use on site with very low, low and intermediate level radioactive waste. As the legacy waste on nuclear sites needs to be verified for alpha active isotopes and in particular for fissile materials, the system will include gamma scanning and active/passive neutron measurements… Read More
Waste pre-selection and free release measurement facility January 20, 2019 Aim: To install, test and calibrate on a decommissioning site a facility for pre-selection and free release measurement of wastes from nuclear facilities. The facility will have scintillating detectors for pre-selection of wastes and germanium detectors for free release measurement. The facility will be surrounded by low activity concrete shielding to meet the limits given… Read More
Stakeholder workshop In-situ metrology for decommissioning nuclear facilities 20th February 2019, CIEMAT (Spain) January 18, 2019 We’re pleased to invite you to the Stakeholder workshop about “In-situ metrology for decommissioning nuclear facilities” to present the outputs and products designed and validated by an European consortium in the areas of: in-situ methods for rapid measuring the radioactivity content of materials on a nuclear site a novel automatic measurement system to check whether… Read More
Rapid radiochemistry analysis December 31, 2018 Aim: To develop radiochemical strategies for the analysis of radionuclides in materials. Accurate measurement of radioactivity in waste materials has an important role to play in the decommissioning of nuclear sites, as it enables site operators to dispose of waste in compliance with the regulations. The determination of alpha- and beta-particle emitting radionuclides in decommissioning… Read More
Remote characterisation in nuclear facilities December 5, 2018 Aim: To develop in-situ methods for the rapid radionuclide characterisation of the different types of materials present on decommissioning sites. The methods will improve the remote mapping of contamination and doses inside nuclear facilities and thus enable the disposition of activity to be determined and characterised, so that decommissioning work can be planned. The performance… Read More
In-situ monitoring of radiocarbon emissions using laser spectroscopy March 30, 2018 Current methods used for the detection of long-lived radioisotopes are mainly laboratory-based techniques, which cannot provide on-site monitoring capabilities. Optical techniques, such as laser spectroscopy, on the other hand, have inherent on-site monitoring capabilities, as it can provide compact, transportable, and reliable instrumentation, while still achieving very high sensitivity. Cavity ring-down spectroscopy is one of… Read More
Strain and temperature sensors March 20, 2018 Distributed Strain and Temperature Sensors (DSTS) by optical fibres are quite promising methods for the long-term (a few decades typically) structure health monitoring. As responsible operators, Andra and EDF are evaluating the feasibility to deploy such systems in their respective facilities: prospective underground radioactive waste repositories in the one hand, and hydraulics facilities (dams, dikes,… Read More
Air and water monitoring by on-line liquid scintillation February 27, 2018 The regular monitoring of air and water samples in and around civil nuclear sites (both active and during the process of decommissioning) and waste repositories is of key importance, both in terms of ensuring that any possible contamination resulting from leaks or spills is detected in a timely fashion and to satisfy the regulatory and… Read More
Validation of a waste charecterisation system for low and intermediate level radioactive waste February 5, 2018 Read More
Pre-selection and free release measurement facility January 15, 2018 The facility for pre-selection and free release measurement of wastes for nuclear facilities will be installed, tested and calibrated on decommissioning site during the course of this project. The facility is based on 4 plastic scintillating detectors for pre-selection of wastes, and 4 germanium detectors with mechanical cooling for free release measurement. The whole facility… Read More