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Latest ITER Newsline

  • Rendezvous | D and T to meet at JET in 2020

    In 2020, for the first time in more than 20 years, a reaction that only occurs in the core of the stars will be produced on Earth in a man-made machine. In the [...]

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  • On site | MOMENTUM believes in recent graduates

    It is rare for students to leave university and immediately begin work on a globally significant project. But thanks to the graduate program run by the project' [...]

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  • Tokamak Pit | Big steel elbow in place

    A cryostat feedthrough delivered by the Chinese Domestic Agency has become the first metal component of the machine to be installed in the Tokamak Pit, in an op [...]

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  • Neutral beam source | Europe awards EUR 20 million contract

    The contract, awarded to ALSYOM-SEIV (ALCEN group, France), launches the manufacturing phase for the beam source that will come on line in 2022 as part of the f [...]

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  • Image of the week | US Under Secretary of Science tours site

    Five months, almost to the day, after the US Secretary of Energy Rick Perry visited ITER, his deputy, Under Secretary for Science Paul Dabbar, stood by the same [...]

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Of Interest

See archived entries

Magnet instrumentation contract running smoothly

ITER Magnet Division, Instrumentation team

The temperature sensor test facility, the CEA project team, and a delegation from the ITER Magnet Division at the contract steering committee meeting held in November 2015. (Click to view larger version...)
The temperature sensor test facility, the CEA project team, and a delegation from the ITER Magnet Division at the contract steering committee meeting held in November 2015.
The ITER magnet system requires cryogenic temperature and helium flow measurements to control and protect the cryogenic cooling of the coils, coil structures, busbars and current leads. The instruments that supply the measurements need to be accurate and reliable, and also capable of operating in the very harsh environment of the cryostat and the ITER magnet feeders.

Although the measurement solutions planned for ITER are based on proven technologies, particular attention is being paid during the qualification phase to measurement performance, compliance with environmental constraints, and installation feasibility.

The cross section of a Venturi tube, used for helium flow measurements. (Click to view larger version...)
The cross section of a Venturi tube, used for helium flow measurements.
All of the magnet instrumentation and control components are procured directly by the ITER Organization. As many of them will be installed by the ITER Domestic Agencies involved with coil and/or magnet feeder fabrication, the ITER Organization must—in addition to procuring the instrumentation—manage the delivery of the components in due accordance with supplier manufacturing schedules.

A temperature sensor and its support. Some 2,200 cryogenic temperature measurement chains are included in the scope of the contract between the ITER Organization and the CEA. (Click to view larger version...)
A temperature sensor and its support. Some 2,200 cryogenic temperature measurement chains are included in the scope of the contract between the ITER Organization and the CEA.
The ITER Organization has selected the French Alternative Energies and Atomic Energy Commission, CEA, as the supplier for both the cryogenic thermometers and the Venturi tubes for helium flow measurement. Two contracts have been placed, whose scope encompasses the design, qualification, calibration and fabrication of 2,200 cryogenic temperature measurement chains (a sequence of components) and 280 Venturi tubes.

Today these two contracts are running smoothly: the design phase for both is fully completed, and temperature sensor supports are routinely delivered to the Domestic Agencies. The manufacture of the Venturi tubes will start next month and series production for the temperature sensors in early 2016.

This success has been made possible thanks to the efficient collaboration between the ITER Organization and the CEA.


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