Engineering Summary Agenda: Clarification of cooling channel tolerances – Tim Open issues with absorber integration – Andy/Wing.

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Presentation transcript:

Engineering Summary Agenda: Clarification of cooling channel tolerances – Tim Open issues with absorber integration – Andy/Wing

Tolerances Tolerances confirmed from MICE notes and tabulated It will be a challenge to meet them But we are in a position to make a practical try-out: we have the SS support frames, with actual adjustments, and will shortly have the FC support frame in R5.2 we will shortly have a full size dummy SS, on which we can simulate fiducials, etc Suggest we meet in R5.2 with RAL metrology to make a proper trial

Table of positional tolerances ComponentPositional tolerance zone of the magnetic axis with respect to the nominal axis The positional tolerance of the magnet centre longitudinally with respect to the nominal centre Comments Virostek plates5mm±3mm Spectrometer Solenoid 1mm±0.5mm AFC1mm±0.5mm RFCC1mm±0.5mm 3 Potential to relax and split the tolerance zone into tilt and traverse tolerances?

Adjustments for SS, FC similar 4

Absorber/window integration This year we need to integrate the liquid absorber/windows/LH2 system/FC for real, that is for Step IV we probably need a history lesson, what has already been done? what needs to be done, who can do it and when Believe there are some open engineering issues, for example: location and fixing of absorber in FC resistance to quench (and other) forces acceptance of windows; metrology, pressure testing, x-raying, shipment window fixings and seals EU declaration of conformity for absorber services arrangement over magnet face Do any assembly/installation drawings exist? any requirements for cleaning, baking, etc? Installation tooling for absorber are we clear over the exact interface with the LH2 system?

Absorber/window integration open issues, Continued: MLI, is it complete? How is the indium seal (?) kept under tension surface treatment and torque figures for seal bolts pressure test of complete assembly, is stored energy <250 bar.litres? if yes, how do we do it, gas, liquid? we would like to be getting on with things when the FC Hall field mapping is complete Another meeting probably required, hopefully where we can talk around an assembly drawing

Absorber/window integration Useful discussion; Wing provided link with history, going back to 2003! all points now have answers or actions