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Latest ITER Newsline

  • Cryostat thermal shield | A "strong back" for a fragile component

    The lower cylinder thermal shield is a large silver-plated component, circular in shape and five metres tall, which fits inside the depression in the cryostat b [...]

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  • Diagnostic shielding | B4C ceramic bricks prove their worth

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  • Image of the week | The cryostat top lid, batch after batch

    Batch after batch, the elements for the top lid of the ITER cryostat keep arriving from India. As of today, 7 out of the 12 required segments have been delivere [...]

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  • Cooling water system | The tanks within a tank

    Deep inside the bowels of the Tokamak Building, the entrance to one of most spectacular rooms of the whole installation resembles that of a broom cupboard. [...]

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  • ITER assembly | Last major assembly contract signed

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Of Interest

See archived entries

Where cold and warm worlds meet

High temperature superconducting current leads will connect the cold ITER magnets to room-temperature electrical busbars. The cubicles above will be transported to China, where they will be commissioned and finally connected to the equipment under testing conditions. (Click to view larger version...)
High temperature superconducting current leads will connect the cold ITER magnets to room-temperature electrical busbars. The cubicles above will be transported to China, where they will be commissioned and finally connected to the equipment under testing conditions.
The enormous ITER superconducting magnets will operate at only four degrees above absolute zero and will be powered by converters located in buildings outside the Tokamak Complex. The connection of these cold magnets to the room-temperature electrical busbars is implemented through a unique series of components where the cold and warm worlds meet—the high temperature superconducting current leads.

The prototypes of these leads will be cooled down and powered for the first time at the ASIPP Institute in Hefei, China during the second half of 2014. The ITER Magnet and Control System Divisions have worked together for the last two years on the design and construction of the instrumentation, control, and interlock systems that will be necessary to safely perform these tests.

This joint effort reached its first milestone last December when the Factory Acceptance Test of the control system for the lead tests was successfully completed on the premises of Tata Consulting Services (TCS) in Pune, India. Staff from ITER as well as Indian engineers from TCS and Chinese scientists from ASIPP have worked last year to get the control system ready for delivery on time.

These tests represent an important milestone not only for our colleagues in the Magnet Division but also for the CODAC and interlock teams at the ITER Organization. The design of this control system is fully based on the hardware and software solutions developed by these teams during the last years and the tests are a very useful opportunity to prove their performance and identify any potential improvements. Last but not least, this project has shown how two ITER Divisions in two different Directorates can make a success out of a common endeavour.

The cubicles shown above were packed in Mumbai for a flight to China in the coming days, where they will be commissioned and finally connected to the equipment under testing conditions.



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