Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Image of the week | Tokamak-sur-mer

    At the height of the heat wave, in late June, surface temperature on the ITER worksite climbed to the 50 °C range. To continue work—and protect workers—a series [...]

    Read more

  • Space propulsion | Have fusion, will travel

    The idea of propelling rockets and spaceships using the power of the atom is nothing new: the Manhattan Project in the mid-1940s as well as countless endeavours [...]

    Read more

  • Cold fusion | End of story?

    Thirty years ago, two electrochemists at the University of Utah, Martin Fleischmann and Stanley Pons, created a sensation when they claimed they had achieved fu [...]

    Read more

  • Magnet feeders | Wave of deliveries ahead

    Several batches of magnet feeder components will arrive from China in September containing elements that need to be received, inspected and readied for installa [...]

    Read more

  • Tokamak cooling system procurement | Global team for better efficiency

    A unique work-sharing arrangement is expediting the design and fabrication of ITER's tokamak cooling water system and building the knowledge base that will be c [...]

    Read more

Of Interest

See archived entries

In-wall shielding: ready for manufacturing

Haresh A. Pathak, In-Wall Shielding Project Manager for ITER-India

Assembly of three in-wall shielding blocks of poloidal segment 1 on a partial mockup of an ITER vacuum vessel sector. (Click to view larger version...)
Assembly of three in-wall shielding blocks of poloidal segment 1 on a partial mockup of an ITER vacuum vessel sector.
The last hurdle to the manufacturing of ITER's in-wall shielding was cleared this month, with the successful Manufacturing Readiness Review held by ITER-India, the Indian Domestic Agency, on 8-10 June.

The Manufacturing Readiness Review (MRR) is required by the ITER Organization before the start of manufacturing of any component or system. Conducted by the relevant ITER Domestic Agency, the MRR ensures that the Domestic Agency and its manufacturer have prepared necessary quality plans for materials and manufacturing; quality procedures; a Manufacturing and Inspection Plan (MIP); a sample material production report for materials; and the necessary mockups to establishing final manufacturing and inspection processes.

All these documents have to be approved by ITER Organization before the start of manufacturing.

The Indian Domestic Agency is responsible for manufacturing and delivering approximately 9,000 in-wall shielding blocks. Made of borated steel and ferromagnetic steel and weighing between 160 and 820 kg, these shielding blocks will protect ITER cryostat components from the intense neutron radiation and help optimize the plasma performance by reducing toroidal field ripple. (See related story.)

The group assembled for the vacuum vessel In-Wall Shielding MRR included representatives from the Indian Domestic Agency, the manufacturer ATL, and the ITER Organization. (Click to view larger version...)
The group assembled for the vacuum vessel In-Wall Shielding MRR included representatives from the Indian Domestic Agency, the manufacturer ATL, and the ITER Organization.
The MRR for the ITER vacuum vessel in-wall shielding was held by ITER-India, the Indian Domestic Agency under the chairmanship of Haresh A. Pathak, with manufacturer M/s. Avasarala Technologies Limited (ATL, Bangalore) and representatives from the ITER Organization present.

This panel discussed inspection and testing reports of in-wall shielding mockup blocks, as well as the proposed manufacturing processes, the critical dimensions achieved during mockup manufacturing, the assembly of in-wall shielding blocks on a partial mockup of the vacuum vessel, and material requirements. The group also visited the ATL manufacturing facility and inspected in-wall shielding mockup blocks as well as their assembly on the partial mockup of ITER vacuum vessel sector.

At the end of the three-day MRR, the panel declared itself to be satisfied with the preparedness of ITER-India and ATL in terms of manufacturing and inspection procedures as well as required facilities. Clearance was given to begin the manufacturing of the in-wall shielding blocks.


return to the latest published articles