New design options for ITER ELM coil brackets

A non-welded bracket design is proposed and evaluated for the ITER ELM Coil fixture on the Vacuum Vessel. The main benefits include a lower stress concentration, a broad choice of higher strength material and assembly flexibility. Possible excessive temperatures are assessed and verified. The bracket is shown under 500C with steady-state full powered plasma operation, which is a very conservative case. Further detailed design is under consideration to put pre-stress on the brackets.