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  • Cross-sector advocacy | The fusion knights

    Developing fusion as a usable energy source requires an all-hands-on-deck approach. At last week's ITER workshop, fusion advocacy organizations showed the role [...]

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  • Knowledge dissemination | ITER enters a shared-information era

    Workshop lays groundwork to provide vast amounts of ITER research and expertise to fusion companies. As ITER embarks on an ambitious initiative to accelerate th [...]

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  • Private Sector Workshop | "How can ITER help?"

    There are many ways to approach the harnessing of fusion energy: one is to optimize or simplify existing concepts; another is to exhume long-abandoned solut [...]

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  • Fusion codes and standards | "Consistency will accelerate global innovation"

    The development of commonly agreed codes and standards for fusion goes right to the heart of ITER's vision of collaboration, recognizing the exceptional dynamis [...]

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  • Industrial ecosystem | Suppliers see growing opportunities

    A diverse group of suppliers described their roles in a growing ecosystem around nuclear fusion and shared their vision of the future. The quest for fusion brin [...]

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Of Interest

See archived entries

Procurement Arrangement 44 for ITER's thermal shields

Done! ITER Director-General Kaname Ikeda and Kijung Jung, Head of the Korean Domestic Agency after signing the Procurement Arrangement for ITER's thermal shield system. (Click to view larger version...)
Done! ITER Director-General Kaname Ikeda and Kijung Jung, Head of the Korean Domestic Agency after signing the Procurement Arrangement for ITER's thermal shield system.
On Monday, 17 May, Procurement Arrangement #44 for ITER's thermal shield system was signed between the ITER Organization and the Korean Domestic Agency. The thermal shields, a key component for the successful operation of ITER, minimize the heat loads transferred by thermal radiation and conduction from the warm components inside the tokamak to the components and structures that operate at 4.5 K. The shields themselves will operate at approximately 80 K.

A view of the thermal shield system that will protect the vacuum vessel. (Click to view larger version...)
A view of the thermal shield system that will protect the vacuum vessel.
The thermal shield system is made of single-wall stainless steel panels with the cooling pipes welded to the panels. The panels are cooled by 1.8 MPa pressurized helium gas supplied by the cryoplant. Thermal radiation to the superconducting magnets confining the plasma is further reduced by providing a 5 μm thick, low emissivity silver coating on both sides of the shield plates. The shield's surface area covers 10,000 square metres and, once assembled, will stand 25 metres at its highest point.

Signing the contract is one thing. Preparing the road that leads there is another, and many people contributed. (Click to view larger version...)
Signing the contract is one thing. Preparing the road that leads there is another, and many people contributed.
The contract was signed by ITER Director-General Kaname Ikeda on behalf of the ITER Organization and the Director of the Domestic Agency Kijung Jung on behalf of the Republic of Korea. The component will be manufactured under the supervision of the National Fusion Research Institute and is expected to be delivered to the ITER construction site in southern France by late 2016.



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