Following inspection, the wall segments were disassembled
. Adjustments are being made as seen above with a high-performance plasma torch. Once reassembled and welded into place, the full cryostat base will weigh 1,250 tonnes—the heaviest single component to be lowered by the overhead cranes into the machine assembly well in the Tokamak Building.
The lower cylinder of the cryostat—30 metres in diameter, 490 tonnes—has been completely assembled.
During the welding operations of the last months, approximately 200 metres of circular and vertical welds were carried out. When all activities on this cryostat section conclude, it will be moved from the Cryostat Workshop to a protected location on the platform to make room for the upper cylinder segments that will be arriving from India.
It took approximately four weeks to verify half of the vacuum welds of the lower cylinder.
Different specific ultrasonic examination probes are being used by Larsen & Toubro specialists
to cover various angles and depth ranges.