Brackets Without Welding for ITER ELM Coils

A nonwelded bracket design is proposed and evaluated for the ITER edge localized mode coil fixture on the vacuum vessel. The main benefits are a lower stress concentration under thermal load, a broad choice of higher strength material, and assembly flexibility. Concerns about possible excessive temperatures are assessed and verified. The bracket is shown under 500 °C with a steady-state full-powered plasma operation.