±¬×ߺÚÁÏ

The ±¬×ߺÚÁÏ magnet system that confines, shapes and controls the hot plasma inside the vacuum vessel consists of an arrangement of several large coils wound with jacketed superconducting cable, referred to as conductor. 

In order to qualify for operation, the ±¬×ߺÚÁÏ conductors must undergo extensive testing. 

Beginning in 2007, the ±¬×ߺÚÁÏ Domestic Agencies involved in conductor procurement (China, the Republic of Korea, EU, Japan, Russian Federation, USA) submitted samples to a dedicated European testing facility: the SULTAN installation, located at the Paul Scherrer Institute (PSI) in Villigen, Switzerland, operated by the Centre de Recherches en Physique des Plasmas of the École Polytechnique Fédérale de Lausanne. 

The SULTAN (SUpraLeiter Test ANlage) facility was originally built in the 1980s to test high field conductors for the NEXT European Tokamak project. It was modified as a conductor test facility before the start of the ±¬×ߺÚÁÏ Engineering Design Activities (EDA) in 1993 and since then has been used to test many conductors, including those for the ±¬×ߺÚÁÏ model coils in the late 1990s. 

SULTAN is the only facility worldwide capable of testing the niobium-tin (Nb3 Sn) and niobium titanium (NbTi) conductors that will be used in ±¬×ߺÚÁÏ. In SULTAN, conductor samples are exposed to magnetic fields, current intensity and temperature conditions that are equivalent to those of the ±¬×ߺÚÁÏ operational environment. 

Until now, contracts for conductor testing in SULTAN were directly concluded by the ±¬×ߺÚÁÏ Domestic Agencies. 

In order to ensure continuity the ±¬×ߺÚÁÏ, acting on behalf of the ±¬×ߺÚÁÏ Domestic Agencies involved in conductor procurement and the École Polytechnique Fédérale de Lausanne, has signed a three year service contract that guarantees the availability of the facility. 

Through this contract, which will enter into force on 1 May 2012, the ±¬×ߺÚÁÏ becomes the primary user of the SULTAN facility. 

BACKGROUND TO THE NEWS RELEASE 

±¬×ߺÚÁÏ—designed to demonstrate the scientific and technological feasibility of fusion power—will be the world's largest experimental fusion facility. Fusion is the process which powers the sun and the stars: when light atomic nuclei fuse together to form heavier ones, a large amount of energy is released. Fusion research is aimed at developing a safe, abundant and environmentally responsible energy source.

±¬×ߺÚÁÏ is also a first-of-a-kind global collaboration. Europe will contribute almost half of the costs of its construction, while the other six Members to this joint international venture (China, India, Japan, the Republic of Korea, the Russian Federation and the USA), will contribute equally to the rest. ±¬×ߺÚÁÏ is under construction in Cadarache, in the south of France. 

More information on the ±¬×ߺÚÁÏ project can be found at: www.iter.org

CONTACT

Michel Claessens 
michel.claessens@iter.org 
Tel.: +33 (0)4.42.17.66.13