Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • The magnet lab next door

    Two and a half years ago ITER and the French Alternative Energies and Atomic Energy Commission (CEA) entered a collaborationto prepare for the challenging task [...]

    Read more

  • Further validation for ring magnets fabrication

    Once a component mockup has been produced—and before fabrication can begin on the actual component or system—a manufacturing readiness review is required to ens [...]

    Read more

  • ITER-like WEST ready to go

    Imagine a space shuttle 'landing' on—or rather flying very close to—the surface of the Sun. The heat load it would be exposed to would be in the range of 10 to [...]

    Read more

  • Many will be heavier, none will be wider

    Of all the components that will be delivered to ITER in the years to come, many will be heavier, taller and more spectacular than the two 'E-Houses' that reache [...]

    Read more

  • Signatures complete transfer of ion source power supply

    Occupying a full room at the PRIMA neutral beam test facility in Italy, the ion source extraction grid power supplyis an important power supply componentfor the [...]

    Read more

Of Interest

See archived articles

Managing complexity with good processes

-Alex Martin (Design Integration) and Angela Saenz (Project Control Office)

The ITER in-vessel configuration, representing (from left to right) the in-vessel diagnostics, the in-vessel coils, the blanket manifolds and the blankets. (Click to view larger version...)
The ITER in-vessel configuration, representing (from left to right) the in-vessel diagnostics, the in-vessel coils, the blanket manifolds and the blankets.
The inner workings of the ITER Tokamak are highly complex, not only because of the sheer number of components but also due to the elaborate interconnectivity between them. Over 600 components among the blanket, the divertor and the port plugs act as plasma-facing elements, covering a surface area of 875 m2. Hundreds of other components are placed between these elements and the vacuum vessel.

The technical complexity, the variations in schedule, and the number of supplier interfaces at each Domestic Agency add an extra dose of challenge.

A team of seven, led by Tokamak Integration Responsible Officer Alex Martin, has worked intensively to come up with a design approach that allows the components and their interfaces to mature at the same pace.

This integrated approach involves considering all the components inside the machine as a single system. A cross-functional team has been put in place involving a high degree of collaboration between the design teams of the vacuum vessel, in-vessel diagnostics, in-vessel coils, blanket manifolds, blankets, first-wall diagnostics, the divertor, divertor diagnostics and port plugs. In this approach, the designs of all the components are updated periodically. An assessment of how well this configuration works is then performed, informed by feedback from both the teams working in component development and manufacturing and those in system management (i.e., tolerance analysis, nuclear analysis). The necessary design trade-offs are then performed and the designs adjusted.

This iterative process will conclude with the successful delivery and installation of the components forming the in-vessel system.

For their teamwork, collaboration and effort in the construction of a coherent in-vessel configuration integration design, the team composed by Alex Martin, Anne Arnould, Jorge González, Patrick Martin, Gonzalo Martinez, Charles Millot and Flavien Sabourin received a commendation during the ITER Recognition Ceremony held in December 2014.


return to the latest published articles