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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

Review of ITER's Upper Port Plugs

-Spencer Pitcher, ITER Diagnostic Physicist

Location of Diagnostic Port Plugs on ITER. (Click to view larger version...)
Location of Diagnostic Port Plugs on ITER.
One key aspect of the research program of ITER is the diagnosis of the plasma and the first-wall, e.g. the plasma temperature, its density, its radiative properties, its first-wall resilience. For this purpose, a large number of diagnostics peer into the ITER vacuum vessel from many different vantage points.

The focus of the Design Review being held next week here in Cadarache is the generic location known as the upper port plugs. The diagnostic Generic Upper Port Plug (GUPP) design is meant to be common to all upper port-based diagnostic systems. It provides a common platform, or support/container, for a variety of diagnostics. In addition, the port plug structure must contribute to the nuclear shielding, or plugging, of the port and further contain circulated water to allow cooling during operation and heating during bake-out. The port plug must withstand disruption forces, thermal stresses and seismic events.

The design of the GUPP represents the culmination of two years of collaborative work involving the ITER Organization, most of the Domestic Agencies - including a leading role by the US DA (Princeton Plasma Physics Lab) - and several industrial contractors.


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