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8 June 2015

ITER news digest for the period of 1 June 2015 to 8 June 2015.

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Featured (4)

Of interest (3)

Press (4)

Featured

Project Team—a new tool for efficiency

At JT-60SA also, components are arriving

The tritium breeding challenge

The light turns green for ITER diagnostics in Japan

"Plasmoids" could simplify the design of future tokamaks

Researchers at the US Department of Energy's Princeton Plasma Physics Laboratory (PPPL) have for the first time simulated the formation of structures called "plasmoids" during Coaxial Helicity Injection (CHI), a process that could simplify the design of fusion facilities known as tokamaks.

The findings, reported in the journal Physical Review Letters, involve the formation of plasmoids in the hot, charged plasma gas that fuels fusion reactions. These round structures carry current that could eliminate the need for solenoids — large magnetic coils that wind down the centre of today's tokamaks — to initiate the plasma and complete the magnetic field that confines the hot gas.

"Understanding this behavior will help us produce plasmas that undergo fusion reactions indefinitely," said Fatima Ebrahimi, a physicist at both Princeton University and PPPL, and the paper's lead author.

Left: Plasmoid formation in simulation of NSTX plasma during CHI / Right: Fast-camera image of NSTX plasma shows two discrete plasmoid-like bubble structures. (Photo by Left: Fatima Ebrahimi, PPPL / Right: Nishino-san, Hiroshima University)

Read the full article on the PPPL website.

Permalink : https://www.iter.org/of-interest?id=479

Job fair proposes 350 local jobs

Facilitating the encounter between job opportunities and local jobseekers was the objective of the third "L'Energie pour l'Emploi" (Energy for Employment) job fair held last Thursday 4 June at the Château de Cadarache near ITER.

This year's fair, organized by Saint-Paul Emplois (the municipal employment association of Saint-Paul-lez-Durance, France) in collaboration with a number of neighbouring municipalities and the national employment agency Pôle Emploi, had broadened its outreach beyond the ITER construction site and the CEA research centre.

To make the fair even more attractive to the 500 job seekers that had come from all over the region, 40 local companies were present as well as the French Army and the Gendarmerie.

Long queues formed at each of the stands as jobseekers waited for their turn in this professional speed-dating exercise with human resource specialists from each organization.

In total more than 350 jobs were on offer, in a variety of fields such as construction, engineering, nuclear industry, army and services. "Every day, more than 8 000 people come to work in Saint-Paul-lez-Durance at one of the worksites or organizations based on its territory," says Roger Pizot, Mayor of Saint Paul, "and this also creates considerable indirect employment. This Forum helps to ensure that the first ones to benefit from these job creations are the local jobseekers."

The ITER stand. From left to right, Sophie Gourod, Sophie Flechel and Emilia Fullmer-Bourree from the Human Resources Department.

Permalink : https://www.iter.org/of-interest?id=478

Like a beast, with its horns...

Before it can become operational, the main body of an electrical transformer must be equipped with several additional elements such as oil radiators, an oil conservator, and insulators called "bushings" — long ceramic devices that deliver the current to the transformer and stick out like horns on the head of a beast.

In order to prevent electrical discharge in the air, the length of the bushings must be proportional to the voltage: at 400 kV, no less than 6 metres of conductor, filled with oil and encased in a ceramic structure, are necessary.

Installing each one-ton component is a long and delicate operation that must be replicated three times for each transformer (one per electrical phase).

When all accessories are installed, the transformer will be filled with oil (an operation that will take three days straight). More than 60,000 litres of oil are necessary per transformer.