Radiological Characterization of components and structures

Radiological characterization of activated and contaminated components is a key element in dismantling and decommissioning (D&D) projects. This yields activity inventories and radiation information which are crucial to evaluate disposal routes, to verify that the requirements for packaging, transportation, and storage are met, and to comply with safety standards throughout the D&D process.
The radiological characterization is initiated by the theoretical calculation of activation, which is performed using Monte Carlo particle transport simulations and activation calculations. To validate the resulting activity inventories, multiple steps need to be employed: First, samples are extracted from activated and contaminated components. Next, radiochemical analyses are performed to establish a measured activity inventory and contamination level. Finally, based on the calculations and the results of the measurements, covering activity inventories and contamination levels for the components are determined.
This approach for the radiological characterization is in accordance with regulatory requirements and thus the foundation for a successful D&D campaign.