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The ITER In-Wall Shielding (IWS) consists of blocks sandwiched between inner and outer shells of the ITER Vacuum Vessel. Typically an IWS block is assembled to vessel by first fixing a lower bracket to the vessel rib, followed by putting the block on the bracket and then fixing the upper bracket to block and rib using bolts and cap screws. As the ITER Vacuum Vessel consists of several ports and penetrations,...