ºÚÁÏÍø

WEST's international call for modelling and experimental proposals was successfully completed on 15 March 2016 with more than 150 proposals received from the ºÚÁÏÍø Organization, Europe, USA, China, Japan, India, Korea and Russia. The first will be held on 18-20 April 2016 at CEA Cadarache to discuss the prioritization of experimental and modelling proposals and to define a timeline for the 2016-2017 WEST experimental campaigns.

At the first edition of the Security Meetings exhibition in Cannes, France, on 22-24 March 2016, ºÚÁÏÍø Head of Security, Health & Safety Christophe Ramu was awarded the title of "Security Director of the Year."

A first of its kind, the exhibition brought together more than 120 participants from prestigious organizations such as CEA, Aéroport de Paris, Airbus, Air France, Banque de France, Bolloré, Bouygues, Capgemini, Cartier, City of Marseille, Engie, Gendarmerie Nationale, Hyatt, Intercontinental, Lafarge, Razel-bec, Saint-Gobain, Suez, Orange, DHL and Musée du Louvres.

During the event, four security awards were also attributed to reward outstanding initiatives in security approach.

In the category "Security Director of the Year," Christophe Ramu was recognized for his professionalism and innovation in the exercise of his profession. Christophe, who joined ºÚÁÏÍø in 2012 after serving for 20 years at Marseille's Marine Fire Battalion, is managing—among many other tasks—the evolution in the implementation of a pre-enrolment system for accessing the ºÚÁÏÍø site.

This system will enable on-site contracting companies, once they are accredited by the ºÚÁÏÍø Organization, to manage access requests for their own personnel. The system, which will be fully operational in the second half of 2016, will also improve the monitoring activity of personnel presence and localization on the ºÚÁÏÍø site.

Cooling 10,000 tons of superconducting magnets that will confine the energy-generating plasma is indispensable to the proper working of the ºÚÁÏÍø Tokamak. The , whose design phase began in 2013, has now entered the fabrication phase at the Air Liquide factory near Grenoble, France.

This impressive centralized cryogenic refrigeration system will be composed of helium (He) and nitrogen (N2) refrigeration units and dedicated storage, operating in a closed loop. Helium, at a temperature of close to the absolute zero (-269°C, or 4.5K), will be used to cool magnets, vacuum pumps and certain diagnostic systems.

Nitrogen, whose temperature (-196°C, or 77K) is not quite as low, will contribute among other things to the cooling of the heat shield and to the pre-cooling of the helium refrigeration unit and the helium loops. The site's three helium units (LHe) will occupy 3,000 m2 of the 5,400 m2 set aside for the ºÚÁÏÍø cryogenic unit. LHe is composed of several compression stations and three large cold boxes, which weigh 135 tons each, measure 21 metres in length, and have a diameter of 4.2 metres.

On average, the helium refrigeration units will provide a global cooling capacity of 75kW to 4.5K, which translates into a maximum liquefaction rate of 12,300 liters/hour. They will be completed by two nitrogen units (LN2). The 11 helium and nitrogen gas storage units—with a total capacity of 3,700 m3 (of which 3,300 m3 for the helium)—will help to optimize the recovery of fluids in the various operational phases of the tokamak.

View the special issue on ºÚÁÏÍø in , a magazine from Air Liquide.

For Lego enthusiasts the ºÚÁÏÍø Tokamak is an endless source of inspiration.  In June 2012, Newsline  on Japanese artist Sachiko Akinaga who had created an 8,000-piece tokamak assembly scene using standard Lego bricks.

Two years later an American videogame designer, Andrew Clark, tried to convince the Lego company to bring his model of the ºÚÁÏÍø Tokamak into commercial production; unfortunately, the proposal never gathered the 10,000 "votes of support" required to turn the project into an official set.

At the University of Kyoto in Japan, another Lego venture is taking shape. A group of students in fusion materials and reactor engineering (Konishi Laboratory, Dr Kasada's group) has built a highly realistic version of the ºÚÁÏÍø Tokamak with all major components in place—coils, ports, heating systems, and Test Blanket Modules are all identified by a different colour. The students even managed to insert a waveguide into the vacuum vessel wall...

An achievement in terms of both realism and poetry, the ºÚÁÏÍø-LEGO project will be used for the promotion of fusion energy in exhibitions and conferences.

Click here to view a of the ºÚÁÏÍø-LEGO.