Technological challenges for the design of the RFX-mod2 experiment

The design of RFX-mod2 experiment implies a major change and reconfiguration of the internal components of the present machine assembly. Critical aspects of the design regard the technical solutions needed to fulfil geometrical, vacuum and electrical requirements imposed by interface with existing components and by specific operating conditions. The paper presents an overview of the design choices and the proposed implementations, assessed by means of engineering analyses and experimental tests performed on mock-ups of the new components.