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  • 31st ITER Council | Addressing challenges

    The project's governing body, the ITER Council, convened for the 31st time in its history on 16 and 17 November to evaluate the progress of construction, m [...]

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  • Machine assembly | Key components to be repaired

    When building a machine as large and as complex as ITER, difficulties and setbacks do not come as surprises—they are an integral part of manufacturing, assembli [...]

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  • Space management | Optimizing every square metre

    Building management is a constant challenge at ITER. The American statesman Ben Franklin is credited with saying that a successful organization requires 'a plac [...]

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  • Radio Frequency Building | Installing the first power supply sets

    When the plasma in the ITER vacuum vessel is fed sufficient power, the velocity that the particles acquire causes them to collide, fuse and generate considerabl [...]

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  • Fusion history | H-mode, the discovery that made ITER possible

    Forty years ago, the scientists in the ASDEX tokamak control room at the Max Planck Institute for Plasma Physics (IPP) in Germany sat up straight. Somethin [...]

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Of Interest

See archived entries

"Topping out" RES cooling towers

Work on the Nuclear Propulsion Test Reactor (RES) began in the mid 1990s and should be complete by 2012. © CEA / Le Senechal (Click to view larger version...)
Work on the Nuclear Propulsion Test Reactor (RES) began in the mid 1990s and should be complete by 2012. © CEA / Le Senechal
The development of nuclear propulsion reactors for the French Navy was one of the main reasons why CEA-Cadarache was established in 1959. Half a century later, it's the fourth generation of nuclear boilers that is being developed there.

Work on the Nuclear Propulsion Test Reactor (RES) began in the mid-1990s and should be complete by 2012. A research installation more than an actual prototype, RES will act as support for the French nuclear fleet and contribute to the training of their officers. It will also test new fuels and new core architectures, validate computational models and simulations, and qualify new concepts.

In July 2005, the reactor's 820-tonne containment system was assembled on site and moved into the reactor building, using 36-wheel transport platform similar to the ones that will deliver the largest ITER components to the ITER site. Less than two years later, the reactor vessel was inserted into the containment system.

Following construction tradition, a small tree was placed last week on the roof of the concrete structure that will host the RES atmospheric cooling system. © CEA / Le Senechal (Click to view larger version...)
Following construction tradition, a small tree was placed last week on the roof of the concrete structure that will host the RES atmospheric cooling system. © CEA / Le Senechal
Next to the main building, work is ongoing for the concrete structure that will host the atmospheric cooling system. These "cooling towers" will dissipate the residual energy from the reactor. Last week, as work on the tallest part of the structure was completed, a small tree was placed on the roof and hung with garlands—a construction tradition that originates in Eastern Europe and is called "topping out."



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