Discussion

• Oliver Hans (CERN)
• Michel Duraffourg (CERN)
• Matthew Alexander Fraser (CERN)
• Mario Di Castro (CERN)
• Marc Delrieux (CERN)
• Federico Roncarolo (CERN)
• Denis Gerard Cotte (CERN)
• Christophe Claude Mitifiot (CERN)
• Bettina Mikulec (CERN)
• Ana Guerrero Ollacarizqueta (CERN)

Room: 865/1-D17 During the dedicated PS MD on Oct 13th we were not able to insert the PS injection SEM grids (BSG48,52,54) with RAL OUT and BSG-RAL interlock overridden, as expected to be possible, e.g. according to specs approved here: https://edms.cern.ch/document/1832360/1.0 - Is the problem fully understood to be on the RAL protection layer enabled depending on the ‘user’ ? - If yes: o When was this protection implemented and who was aware on Oct 13th? o why was not evidenced during the HWC in February ? - How to safely re-configure the RAL (and BSG if needed) PLCs to enable multi-turn BSG measurements (‘by procedure’ as agreed time ago ) ? - Do we have to re-consider other configurations/conditions and re-define the IST and the HWC test sequences to include all scenarios?