100-kV feedthrough for the Indian Test Facility (INTF) — design and analysis

The Indian Test Facility (INTF) high-voltage (HV) feedthrough has been designed to connect all the required feedlines carried by the transmission line from the HV deck to the beam source. It forms the primary vacuum boundary and provides 100-kV isolation for INTF beam operation. Thermomechanical and electrostatic analyses have been carried out to validate the design. The observed thermomechanical stress and deflections are within acceptable limits. The results are validated using Structural Design Criteria for In-vessel Components (SDC-IC) criteria. The present manuscript describes the design of and the analysis results for the INTF HV feedthrough.