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  • Vacuum vessel | Second "jewel" to leave Korea

    A second 40-degree sector of the ITER vacuum vessel is about to leave the Hyundai Heavy Industries manufacturing facility in Ulsan, Korea, for shipment to ITER. [...]

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  • ITER Robots | The experts of tomorrow

    Robotics is at the heart of every major industrial project. In ITER, the operation of mobile automated systems will play a key role in assembling machine compon [...]

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  • Cryoline network | Now the vertical spools

    At the L3 level of the Tokamak Building, ceiling height in some galleries exceeds 10 metres. But when it comes to lifting a cryoline spool, tilting it 90 degree [...]

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  • In memoriam | Dhiraj Bora, leading contributor to fusion and ITER

    The ITER community was greatly saddened to learn of the passing of Dhiraj Bora, a well-known expert in plasma physics and tireless proponent of the ITER Project [...]

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  • Thermal shield portfolio | All shine and precision

    A cluster of polished metal and silver catches the eye at the far end of the Assembly Hall, as thermal shield panels join vacuum vessel #6 inside the arms of a [...]

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Of Interest

See archived entries

Review of ITER's upper port plugs

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 bakeout. 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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