Review of ITER's upper port plugs

Subscribe options

Select your newsletters:

Please enter your email address:

@

Your email address will only be used for the purpose of sending you the ITER Organization publication(s) that you have requested. ITER Organization will not transfer your email address or other personal data to any other party or use it for commercial purposes.

If you change your mind, you can easily unsubscribe by clicking the unsubscribe option at the bottom of an email you've received from ITER Organization.

For more information, see our Privacy policy.

News & Media

Latest ITER Newsline

  • Cryodistribution | Blowing cold and hot

    If the cryodistribution system were a railroad, the cryogenic termination cold box would be its main switch. A massive structure packed with pipes, valves, elec [...]

    Read more

  • Pre-assembly activities | Captured from on high

    With assembly tools standing 22 metres tall, massive bridge cranes straddling the width of the building, and alien-shaped components placed at regular intervals [...]

    Read more

  • 27th ITER Council | Assembly moves ahead

    The Twenty-Seventh Meeting of the ITER Council took place by videoconference on 18 and 19 November 2020, chaired by LUO Delong from China. Representat [...]

    Read more

  • Fusion world | Translating JET into ITER

    With an inner wall made of beryllium and tungsten, the European tokamak JET is the only tokamak in the world to share the same material environment as ITER. Whe [...]

    Read more

  • Worksite | Major progress you don't see from the air

    There was a time when aerial pictures of the ITER worksite taken at six-month intervals showed spectacular change. Buildings and structures sprouted from previo [...]

    Read more

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.


return to the latest published articles