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From above, the nine segments of the ITER vacuum vessel—plus their associated thermal shielding and a toroidal field coil on either side—will be lowered into the Tokamak Pit by overhead crane.Download
Working together, the four 375-tonne main hoists in the Assembly Building will handle loads of up to 1,500 tonnes.Download
The ITER "toolkit" for assembly will include very large, heavy, strong, expensive and precise tools.Download
Due to its size and weight, the cryostat will be manufactured in segments and sub-assembled into four sections on the ITER site.Download
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The principal assembly activities will be performed in the Tokamak Building, where the ITER device will be installed inside of a partially embedded, concrete bioshield. For the duration of assembly activities, the Tokamak Building will be operated as a "clean area" (see box) and maintained at a constant temperature to avoid dimensional changes in the largest components. Pre-assembly activities will take place in the adjacent Assembly Building."Clean areas" for machine assembly are controlled to maintain air at a uniform temperature of 20°C (winter) to 25°C (summer) +/- 2°C and relative humidity <70%. A dedicated HVAC (heating, ventilation and air conditioning) system and anti-dust coating on the floor of the Tokamak Building will contribute to maintaining the air quality required by the assembly operations for the ITER vacuum components.