Overview and status of international systems Reminder of the principal deliverables Status reports on: Spectrometer solenoids Radio Frequency Coupling.

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Presentation transcript:

Overview and status of international systems Reminder of the principal deliverables Status reports on: Spectrometer solenoids Radio Frequency Coupling Coils (RFCC) Electron-Muon Ranger (EMR) Absorbers, liquid and solid Conclusion Acknowledgements to Steve Gourlay, Ruslan Asfandiayarov, Alan Bross, Ruben Carcagno, Steve Virostek, Alan DeMello 1 Andy Nichols, STFC, MICE OsC,

Principal deliverables EMR (Electron Muon Ranger) UNIGE responsibility, in manufacture, recent injection of manpower Q SS (Spectrometer solenoids) First magnet ready for mapping, second in advanced state of construction Q3, 2013 RFCC (Radio Frequency Coupling module) Cryostat/cold mass parts now in manufacture at LBNL, very good news – assembly plan for all three magnets in US is advanced but not complete. Cavities are being electro-polished, tuning mechanisms well advanced LHe cooling pipe leak now by-passed, first coil test underway RFCCs are the main driver for MICE Steps V & VI Other international equipment is now covered by M&O But owners are still engaged, eg INFN for TOF/KL & UMISS for cKOV 2

Principal deliverables Liquid hydrogen absorber #1 Required for Step IV Delivered for some time, but… Much work required to understand integration Liquid hydrogen absorber vessel #2 Required for MICE Step V In manufacture at KEK, update required LiH absorber US responsibility – has been complete for sometime MOU between US and UK under construction When this is done, risk assessment for acceptance can begin 3

Spectrometer solenoids Main points to note: Magnet #1 has passed its acceptance criteria Decision taken by MICE to do mapping at US rather than UK- had hoped to save time CERN mapping gear being shipped now, CERN magnet Group will arrive when we know exact arrival date Virostek shielding needs fitting, will be shipped soon, Tim & Roy will assist Then it’s ready for mapping Second magnet going well, cold mass is wrapped and inserted in vessel services turret is being assembled on bench and may well be fitted by now 4

5 Much activity at Wang NMR Training and assembly in parallel No shortage of effort! Significant support from DL Controls Group

RFCC/Coupling magnets Progressing on four fronts: Cold mass test at FNAL – plan is to train coil before final assembly into magnet Vessel fabrication at LBNL Coil winding at Qi-Huan – successful review held in December last, main driver is obviously successful training of first coil Cavity production at LBNL – electro-polishing, completion of electro- mechanical tuners

Cooling Pipe Leak 7 Problem with leaky cooling tube Solved with by-pass pipe Has passed FNAL PED

8 Wrapped and unwrapped cold mass On lid supports ready for insertion] Into cryostat This is a significant piece of work

9 Warm test stand commissioning starting this week Cold test stand commissioning and coil cooldown will start as soon as CHL has enough Liquid Helium to support cold operations – CHL startup activities underway – LHe at CHL expected by April 24, 2013 Powered operations expected to start ~ 2 weeks after the start of cold commissioning – Controlled cooldown may take a long time (LBNL model estimate: 2.5 days. First time cooldown may take a week or so) – Week of May 6th? Estimate two months of testing for coil training, including a thermal cycle Commissioning of a new test stand and test of first of a kind coil adds substantial uncertainty to the schedule

10 Vessel fabrication, for three magnets; material delivered to LBNL, 12 th February Fabrication and machining complete in six months – very ambitious indeed

Progress with EMR 11 Increased technician effort at UNIGE Work concentrating on fibre bundles, 20/96 complete as of March All scintillator bars are ready for assembly Delivery to RAL scheduled for mid-June Will aim to run with EMR before Summer ISIS shutdown But we have not yet planned detail work in R.2 for that period yet

Solid absorbers 12 Procured through Y12: – 1 – 20 cm diameter by 4 cm thick disk For thermal studies – cm diameter by 6.5 cm thick disk – 2 half-wedges Disks complete – Thermal measurements complete Meet spec. Wedges still in fab at Y12 – Negotiating a cost to complete CRADA is being negotiated between FNAL And STFC for delivery Process for acceptance and risk assessment cannot begin till we know How it arrives

Liquid and solid absorbers Liquid absorber #1 has been unpacked Very rudimentary check with FC done One pipe might need to ‘persuaded’ Handling/insertion tool required No major worries….. Liquid absorber integration needs to be defined as an engineering package, many interface-type issues: Services, cables, pipes Sealing Pressure testing and PED acceptance Handling and alignment AND, we need to work out how to import the thin windows from LBNL/Mississippi Lithium hydride absorber holder is complete and ready for use 13

Conclusion Very encouraging news with the spectrometer solenoids; injection of engineering effort and realistic planning has paid off Not sure if field mapping in US will save any time or effort, but we’re doing it as the SS is ready and the FC is not The RFCCs are also on a much better engineering footing: Coil #1 test is impressive and training outside the vessel very sensible CC magnet schedule for series production though is very aggressive ‘Administrative’ processes may yet hold us up though: Avoidance of VAT in UK – historic agreement has been rescinded by HMRC Import of LiH and safety framework Import of thin windows