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News & Media

Latest ITER Newsline

  • Making remote handling less remote

    Over a wet and windy three-day period on the ITER site in November, around 90 representatives of the ITER Organization, the Domestic Agencies of Europe and Japa [...]

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  • The framework for sharing ITER intellectual property

    In signing the ITER Agreement in 2006, the seven ITER Members were agreeing not only to share in the costs of constructing and operating the ITER facility, but [...]

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  • Wendelstein achieves ultra-precise magnetic topology

    A recent article in the online journal Nature Communications confirms that the complex topology of the magnetic field of Wendelstein 7-X—the world's largest ste [...]

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  • The Matrix, rigid and fluid

    A fast-growing array of structures and buildings has been emerging across the ITER worksite platform under the control and supervision of the European Domestic [...]

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  • By road, river and sea

    They travelled by road from the Air Liquide factory near Grenoble, sailed down the Rhône River from Lyon and entered the Mediterranean to the east of Fos-sur-Me [...]

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Of Interest

See archived articles

PA for Spider's Power Supply and Calorimeter signed

Shishir P. Deshpande, Head of the Indian Domestic Agency, after the signature with his team: Ujjwal K. Baruah, Chandramoulli Rotti, Narinder P. Singh, Dilshad A. Sulaiman, Aruna M. Thakar and KGV Nair. (Click to view larger version...)
Shishir P. Deshpande, Head of the Indian Domestic Agency, after the signature with his team: Ujjwal K. Baruah, Chandramoulli Rotti, Narinder P. Singh, Dilshad A. Sulaiman, Aruna M. Thakar and KGV Nair.
This week, the Procurement Arrangement for the 100 kV Power Supply of the SPIDER test facility and calorimeter was signed by Shishir Deshpande, the Head of the Indian Domestic Agency. ITER Director-General Osamu Motojima signed the contract on 10 December. SPIDER is the source for Production of Ion of Deuterium Extracted Radio Frequency plasma. SPIDER - together with MITICA (Megavolt ITER injector & Concept Advance) - comprise PRIMA (Padua Research on ITER Megavolt Accelerator) that is also known as the Neutral Beam Test Facility (NBTF). The NBTF will be located in Padua, Italy.

The two main functions of SPIDER's calorimeter are to intercept the negative ion beam inside the vacuum vessel, and to measure the thermal loads for beam diagnostic. (Click to view larger version...)
The two main functions of SPIDER's calorimeter are to intercept the negative ion beam inside the vacuum vessel, and to measure the thermal loads for beam diagnostic.
On the full size NBTF, ITER components and subsystems for ITER's powerful neutral beams will be tested and developed. For example, it will test the ITER injector at full power and pulse length, thus establishing all the methods and procedures needed to fully commission the injectors on ITER, independently of ITER, using the built-in calorimeter.

The main objective of the SPIDER test bed is to optimize, as far as possible, the performance of the full ITER size ion source at full extracted current, at full pulse length with a source uniformity within ±10 % and in hydrogen and deuterium operation.

The calorimeter consists of two actively cooled panels composed of axial arrays of hypervapotron elements; the coolant manifolds and flexible hydraulic connections; two panel support frames to support the hypervapotron elements allowing free thermal deformations of the hypervapotron elements; and a beam dump support structure for connection to the front lid of the SPIDER Vacuum Vessel. (Click to view larger version...)
The calorimeter consists of two actively cooled panels composed of axial arrays of hypervapotron elements; the coolant manifolds and flexible hydraulic connections; two panel support frames to support the hypervapotron elements allowing free thermal deformations of the hypervapotron elements; and a beam dump support structure for connection to the front lid of the SPIDER Vacuum Vessel.
The SPIDER Power Supply (PS) System shall provide the electric power to the SPIDER accelerator grids and shall supply the SPIDER ion source and the auxiliary components. A section of the SPIDER PS system, called -100 kV PS, shall be capable of voltage regulation and of switch off in case of grid breakdown.


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