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A new acronym is making its way into the fusion landscape: DONES, for DEMO Oriented Neutron Source.

In Europe, a roadmap* for the realization of fusion energy was published in 2012 that breaks down the quest to supply fusion electricity to the grid into eight missions. One of these is to investigate and select neutron-resistant materials for DEMO, the demonstration fusion reactor that¡ªaccording to the European strategy¡ªis the step between ITER and a commercial fusion power plant.

More powerful than ITER and connected to the grid, DEMO will require materials capable of withstanding a stronger flux of neutrons for longer periods.

Currently three R&D projects carried out with the framework of a scientific collaboration between Europe and Japan (the ) are contributing to the design of DEMO. The engineering design and validation activities for the International Fusion Materials Irradiation Facility (IFMIF/EVEDA) are evolving successfully. But when its operation will come to an end, DONES, a future version of IFMIF, will take over and help the scientific community to perform tests and start collecting data.

Designed to mimic the conditions of neutron irradiation in DEMO, DONES would allow scientists to test materials and characterize candidate fusion materials.

Three European countries¡ªCroatia, Poland and Spain¡ªhave expressed interest in hosting the facility. In September, the European Domestic Agency for ITER, which acts as a coordinator for the European activities of the Broader Approach, invited representatives from all three to a technical information session in Barcelona to explain the scope of DONES, outline preliminary technical specifications, and discuss the different steps leading to the submission of applications.

Read the full article on the European Domestic Agency .

*The was published by EFDA (the European Fusion Development Agreement, superseded in 2014 by EUROfusion).

In the Poloidal Field Coil Winding Facility, on site at ITER, fabrication of a qualification mockup of poloidal field coil #5 (17 metres in diameter) began in September.

Click to view a timelapse video produced by the European Domestic Agency for ITER. More information on the manufacturing process .