MICE Funding Agency Committee Technical Status of the MICE Project

1. MICE Funding Agency CommitteeTechnical Status of the MICE Project • Contents: • Technical organisation of project • Target • Decay solenoid • Infrastructure • Moving towards Phase Two • Progress with the major subsystems • Risks and worries Andy Nichols, STFC, 24th April 2009

2. Technical Organisation • Project organisation seems to be on an even keel: • PM/Technical Co-ordinator – Andy Nichols • Hall Manager/Principal Contractor – Willie Spensley • Hall Foreman – Ash Jamdagni • ISIS liaison – Chris Rogers • MICE Operations Manager (MOM) – rolling monthly post, currently Paul Soler of Glasgow University • And we have a stable group of well-motivated technicians from both STFC and the Collaboration • Communication and meetings: • Technical Board – now monthly • Weekly Hall planning meetings • Now-weekly MICO (Mice Installation and Commissioning) meetings – each sub work-package has defined milestones that are tracked each week • Project progress is also reported regularly to PSAG & CPMB meetings- • invaluable help from DL team for electrical installation, RF work and PPS

3. Target • Quote from the last FAC meeting....... • ‘Good news is that the current online target behaves itself very well and we have enough running budget with ISIS for MICE’s anticipated programme till May 2009’ • But I spoke too soon......! Loose collar vibrated from Shaft and caused seizure And bent shaft – terminal failure Tip also melted, but the events Are decoupled – happened when Left in beam – interlock now Prevents this Luckily no damage to ISIS

4. Target • Target recovery plan: • Re-engineering exercise underway • Simplified bearings • Cylindrical shaft • Rigorous QA on : • Dimensional integrity • Material selection • Surface treatment & coating • Modification to monitor working temperature • Status: • Manufacture drawings are done • Most parts are underway • Target control & power projects largely unchanged – already reliable • Target assemblies delivered late July • Plan to install August shutdown 17th Aug-2nd Sept

5. Decay Solenoid • From the last meeting: • ‘’There are two sets of five S/C coils (1-5) (6-10) with 10 at the downstream end • Coil 10 is normally conducting, this is the plan: • Additional temp monitoring fixed to cold mass during October • Diagnostic cooldown taking place now’’ • Since then: • Quite compelling evidence of radiant heat path through thin windows onto cold mass • Built a steel shield inside ISIS to allow DSA work • Fix is to apply multi-layer insulation (MLI behind windows • Has been done at both ends

6. Decay Solenoid • Current status of solenoid: • MLI repairs complete both ends • Solenoid cooled over Easter, now stable at working temperature • Insulating vacuum pumping rigs doubled and gate valves fitted • Quench protection circuitry causing problems – hope the fault is in readout electronics – easier to fix • Essential to fix before full power test • So far the magnet has accepted 400 amps under controlled conditions • Needs to be ~870 amps for nominal field strength • Decay solenoid has to be working for August

7. Infrastructure • The Infrastructure civil engineering project is essentially complete: • All walls, floors and galleries are done • Air conditioning making good progress, finish mid –May • Ditto compressed air installation – only electrical connection and pipework remain • Plan to close MICE hall for all of June for decorating and fire detection wiring • Will be ready to accept spectrometer solenoid and Step II in July

8. Infrastructure • Liquid hydrogen project • Good progress, but not out of the wood yet • R&D system vendors have been visited with STFC Procurement staff • Got it going again! • Staff shortage hopefully solved: • Applied scientist in post • Graduate engineer starts 1st September • Ventilation system and ducting is being tendered now • R&D system driven by requirement for Step IV in spring 2010 • Cautious optimism over decay solenoid; this will liberate significant effort

9. Moving towards Phase Two • Steps II to V are discretely identified in WBS now • Engineering effort to provide each one at RAL is now called ‘integration’ • Covers mechanical/electrical installation, design and procurement of parts and equipment • Tasks have been defined in some detail • Almost completely driven by: • Delivery of major subsystems • Availability of manpower/size of allocation • ISIS running schedule

10. Progress with Major subsystems Coupling Coils 1&2 Spectrometer solenoid 1 Matching coils 1&2 Matching coils 1&2 Spectrometer solenoid 2 Focus coils 1 Focus coils 2 Focus coils 3 m Beam PID TOF 0 Cherenkovs TOF 1 RF cavities 1 RF cavities 2 Downstream TOF 2 particle ID: KL and EMR Calorimeter VariableDiffuser Liquid Hydrogen absorbers 1,2,3 Incoming muon beam Trackers 1 & 2 measurement of emittance in and out

11. Progress with Major subsystems

12. Progress with Major subsystems • Spectrometer solenoid #1: • All fabrication complete at Wang NMR • Leak test OK • Pump down OK • Cooling down now or very soon • Aiming to ship to FNAL for field mapping during May • Two months’ work • Arrives at RAL with luck in July • TOF 2, diffuser & tracker will also be ready on this timescale • Spectrometer solenoid #2 follows in a few months • Spool-piece for Step III is here, LiH solid absorber in progress at FNAL

13. Progress with major subsystems • AFC- Absorber Focus Coil #1: • Making steady progress with Tesla engineering in UK • Early problems with coil former forging now solved • But at the expense of dimensional clash with Lh2 absorber • Recent problem – needs to go to MICE Technical Board • Will not be allowed to stop work at Tesla • AFC very clearly critical path for Step IV • Should be noted as a high risk • Delivery now February 2010 • Monitoring of manufacturer crucial • AFC #2 follows six months after #1 • #3 forms part of UK Step VI bid in December 2009

14. Progress with Major subsystems • RFCC – RFCoupling Coil Module #1 • Organisational problems with vendors in China are now fixed thanks to much hard work by all parties • New subcontractor for coupling coils has been visited and selected • Successful review in December 2008 • First RF cavity is now in manufacture with US vendor • Firm delivery date for RFCC #1 not defined yet – assumed to be late 2010 for schedule purposes • RFCC and RF installation will be largest undertaking for UK team – early links between LBNL & RAL groups for ‘hands-on’ aspect have been made

15. Progress with major subsystems • Trackers: • Both trackers now in dedicated lab at RAL • All readout systems installed • Four VLPC cryostats installed and working • Tracker #2 being made ready for cosmic run • Both trackers being set up to run with real DAQ • Tracker project going very happily – not on critical path

16. Risks and Worries • Another quote from last meeting: • ‘Electrical supply upgrade for Phase Two • By December 2009 – April 2010, an upgrade to a 2MVA electrical supply will be essential for MICE to run • Much work has been done by BPG & DL to make a series of detailed costed options (from 100 to 600 K£), with lead times of up to two years, so we are already late • It’s a non-MICE cost; Sean Stewart of STFC Operations has been asked to consider it as capital expenditure • It’s another potential risk…..’ • Since then: • Cheaper design using existing transformer has been made by DL group- £75K, not £600 • Detailed design layout and proposal made – ready to start discussion with STFC Operations Board • Not a budgetted MICE cost

17. Risks & Worries • None of us have much slack in our schedules • The overall schedule heavily depends on the subsystem deliveries – actually only a few dates, but we have to know what’s driving them • Most activities are ‘plan for success’ only • The scope of the project has to converge with the resources available for installation – sounds obvious, but it’s not clear how we do it right now • The ISIS moderator change (August 2010 – March 2011) might have a major impact on MICE schedule • Comment on project staffing: • PM & budget holder need help with planning and reporting – positive response from UKATC – they have the right expertise – meeting planned for early May • Helpful offer of technician effort from Sofia – could help alleviate effort crisis – will explore more