Final Design Review for the HL-LHC BPMs
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Description
Aim of the Review:
- To confirm that we are ready to hand over the design of the various different BPMs for the HL-LHC Interaction Regions to CERN Internal Manufacturing Workshop of fully compliant pre-series and to BINP for preparing the production.
- To freeze the interfaces and integration aspects impacting all of these BPMs
The Review Panel are asked to answer the following questions:
- Does each BPM design meet the functional requirements?
The characteristics to be assessed in particular are: beam position measurement capability, beam coupling impedance, electron cloud mitigation, cooling including temperature and heat-load management, vacuum integrity, collision debris absorption (where applicable). - Is each BPM design sound and optimised for ease of production and cost?
Design aspects to be assessed in particular are: selected raw materials, machined conflat flanges, synergies with TE/VSC designs (thermal links, RF fingers), coating materials, tooling for BPM alignment, copper inserts, welding lips, cooling capillaries. - Is the BPM integration within each cryo-assembly well defined?
The integration issues to be assessed in particular are: definition of interfaces to the downstream and upstream components, BPM installation procedure including use of the necessary tooling, routing of the cryogenic cables installed within the cryo-assembly, location of cryostat flanges, mock-up plans. - Does the procurement and mechanics production plan promise a successful delivery?
Production aspects to be assessed in particular are: selected machining methods, division of responsibilities between CERN and BINP, production capabilities at BINP, prototyping plan, quality assurance plan, documentation, coating and assembly procedures, non-conformity treatment. - Are the project budget and schedule clear and in line with the HL-LHC project?
Parts of the project to be assessed in particular are: alignment with the global HL-LHC schedule, missing expenses, overlooked tasks.
Composition of the Review Panel: M. Zerlauth (Chair), V. Baglin, P. Fessia, T. Lefevre.
Sc. Secretary: M. Bozzolan