Narveos: a virtual reality simulation environment for nuclear radiating working sites

In the nuclear industry, any company involved in the management and/or the design and performance of interventions on equipment must find the most appropriate scenario considering several constraints: technical requirements: feasibility, kind of means to use, operating modes, tasks scheduling; economical requirements: global mission cost minimization and long-term funding; environmental requirements: waste management, contamination containment, different impacts; legal and regulatory requirements: the ALARA principle, some specific facility rules, the target state with respect to governmental decrees. Today, complex questions about interventions design with increasing reactivity, lower costs and shorter delays must be addressed. In addition, one must deal with unexpected situations during the effective realization of the interventions, and finally the experience feedback of the missions must be consolidated. One important question related to the above mentioned aspects is the choice of a human versus a remote handling or robotic intervention including ALARA consideration for decommissioning workers. (authors)