Context and challenges
This client operates facilities comprising a particle accelerator complex with a 27km-long collider running through underground tunnels. The activity of the machine generates high levels of radiological activity requiring specific surveillance in surface and underground areas, as well as the neighbouring external environment.
A network of monitoring stations on the ground acquires data from equipment (radiation monitors, aerosol or liquid effluent analysis stations, site access control points for vehicles and staff, etc.).
The system manages local alarms, which enables to trigger staff evacuations and stop danger sources. It also helps demonstrate the lack of environmental impact to control authorities. A central SCADA application controls the system in real time and provides access to all archived readings and alarms.
The client called on Assystem to design and install this radiological and environmental monitoring system. This turnkey project involved: a long design and prototyping phase (3+ years), progressive commissioning (5+ years) and a long-term (10+ years) maintenance agreement.
radiological measurement loops
environmental and conventional measurement loops
areas and locations for equipment deployment