How to collect information from 1 billion measurement points?

Participants from F4E, ITER Organization, independent experts and company representatives at the Preliminary Design Review Meeting held at ITER Organization, December 2019, Cadarache, France

ITER will require a sophisticated and agile inspection system to perform a series of checks inside the machine. Cutting-edge technologies bringing together metrology instruments, high-tech vision and robotics will be deployed to create a one billion pixel 3D map of the plasma-facing surfaces inside the ITER device. The In-Vessel Viewing System (IVVS) will help scientists inspect changes, such as erosion, on In-Vessel components. With the help of six probes, located in different ports inside the machine, the IVVS will measure nearly 100% of the surface of In-Vessel components with at least one measurement per mm2 offering an excellent image.

Europe is responsible for delivering the IVVS. Recently, members of F4E, ITER Organization, independent experts and company representatives concluded successfully the Preliminary Design Review (PDR) of the system. More than 35 participants took part to the two meetings to assess whether the proposed design fully meets the requirements, and whether the design process is adequate for the complexity, quality, and safety of the system. Representatives from big and small-medium sized companies contributed to the design review such as Veolia Nuclear Solutions (UK), ASE Optics Europe (Spain), Optima Systems Consultancy (UK), 3D Scanners UK (UK), Cedrat Technologies (France), IDOM (Spain), Micronor (Switzerland), Bridger Photonics Inc. (US).

“The IVVS Preliminary Design Review was carried out taking into account the lessons learned from previous exercises conducted in the past, such as the Divertor Remote Handling PDR”, says Carlo Damiani, F4E Remote Handling Programme Manager.  “The completion of the Preliminary Design Review is an important step towards the fabrication of the ITER In-Vessel Viewing System. What was until recently considered a conceptual design is gradually starting to resemble to a proper system,” explains Gregory Dubus, F4E Project Manager for the IVVS.

“The exchange we had during the two PDR sessions proved to be extremely helpful and we will be taking the time to reflect on how to incorporate them into the next design phase. The Final Design Review of the IVVS is scheduled for November 2021,” adds Philip Bates, F4E Technical Officer following IVVS activities.