Subscribe options

Select your newsletters:


Please enter your email address:

@

News & Media

Latest ITER Newsline

  • Worksite | First pillars for the crane hall

    For the overhead cranes to deliver machine components into the Tokamak assembly pit, the rails that carry them need to be extended some 80 metres beyond the tem [...]

    Read more

  • Transport | 300 tonnes of equipment on its way to ITER

    A specially designed assembly tool and elements of the cryostat and vacuum vessel thermal shields are part of the shipments travelling now from Korea to ITER. W [...]

    Read more

  • Fusion world | A new tokamak in town

    After EAST in China and WEST in France, another of the cardinal points of the compass has been chosen to name a tokamak. Introducing NORTH—the NORdic Tokamak de [...]

    Read more

  • Opportunities | Bringing the ITER Business Forum to Washington

    Every second year, a two-day ITER Business Forum is held to invite existing and potential suppliers for the ITER Project—laboratories, universities, and compani [...]

    Read more

  • World Energy Congress | Fusion "at a time of transition"

    In the United Arab Emirates, Abu Dhabi is often referred to as a tourism hotspot that combines luxury and ancient traditions. In September, Abu Dhabi was in the [...]

    Read more

Of Interest

See archived entries

Blanket remote handling R&D to restart in Japan

Mario Merola, Head of the Internal Components Division

Getting together and enjoying Japanese food is the best way to end intensive working days and to consolidate friendship. (Click to view larger version...)
Getting together and enjoying Japanese food is the best way to end intensive working days and to consolidate friendship.
18 May 2010 was a date that the ITER blanket community will remember. Two critically-important "project change requests" (PCR) were accepted for implementation into the Baseline. They were originated by the ITER design review held in 2007 and confirmed by the blanket conceptual design review held in February this year.

PCR-076 addressed the concern that the beryllium-covered blanket first wall panels are unlikely to have sufficient lifetime under transient heat load events over the 20 years of ITER operation, therefore remote handling capability needs to be clearly demonstrated. This also opens the possibility of a full replacement of the first wall panels in the case of a change of armour material if and when decided.

PCR-077 addressed the new blanket design, namely the shaping of the first wall panels to protect the leading edges; the start-up and shut-down to be carried out on the first wall thereby eliminating the two start-up limiters; and the in-situ replacement of the panels. This latter feature also has important implications on the remote handling operations that will be developed to refurbish the blanket modules inside the vessel.

Following these new remote handling requirements, the importance of a realistic demonstration was pointed out to confirm the remote handling feasibility of the recently-developed FW panels. The Blanket Section, in close collaboration with the Remote Handling Section, has selected R&D items to be conducted in 2010-2011, according to technical priority. The identified items will be investigated by the Japanese Domestic Agency (JA-DA), which is responsible for the Procurement Arrangement of blanket remote handling via a Task Agreement specifically issued for this purpose.

The kick-off meeting for this R&D work was held in Naka, Japan, on 9 June, followed by a number of dedicated technical meetings between the ITER Organization and JA-DA. This is a critically important activity for blanket development, which will address specific remote handling issues like the feasibility of positioning the first wall within the limit of planned fabrication tolerance, the alignment of the cooling pipes which must be remotely cut and re-welded, as well as the required welding procedures. This activity is due to be completed in summer 2011.


return to the latest published articles