MOM Report

MOM Report

Paul SolerMICE Operations Manager

University of Glasgow

MICE Video ConferenceMay 7, 2009

May 7, 2009 Video Conference-MOM Report Soler

2

Decay Solenoid

•Decay Solenoid – cooldown—Cooldown carried out 8-17 April, temperature down to

~4.5K—Matt Hills attempted turning on power supply on Friday 17

April (14:30) but quench protector light number 5 trippedoHelium vented from cryostat relief back up to buffer tank as expected

oDewar emptied and temperature initially raised to 10.5-11.5K but by 17:00 dewar refilled to 80% and temperature back to 4.5K

—One vacuum pump remains off (tripped 18 April)—Quench detector was bypassed on Mon 20 April, ramped

up to 400 A and Decay Solenoid coils went superconducting (first indication Multi-Layer Insulation working)

—Magnet warning lights now working


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Solenoid Control System


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DS Cooldown Sequence

4.6K

8/04/09 17/04/09


5

DS First Ramp Up 20/04/09

400 A*

*Current badly calibrated in control system: 332A in plot corresponds to 400 A

Polarity of circuit for C10 seems to be reversedTotal voltage all coils


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Decay Solenoid•Decay Solenoid – Powered up to 900 A, 24/04/09

— Between 21-23 April:o Quench Detector (QD) problem diagnosed to broken wire within QD chassis

o 2A fuse associated with QD external relay chain blew and replaced with 5A fuse (need to restore original fuse tolerance)

— Fri 24 April: Decay Solenoid powered up in stages to 900 A, then brought down to 870 A (5T B-field), where it remained for 1 hour before powering down once more.

— Further tests need to be carried out — Need to carry out soak tests at 870 A over a period of many

days to demonstrate that solenoid can work in a stable manner— Tom Bradshaw putting together document to define standard

operating conditions for decay solenoid.

Many thanks to Matt Hills, Jim Rochford, Mike Courthold, Craig MacWaters, James Leaver, Willie Spensley, Linda Coney …


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DS Ramp Up 24/04/09

870 A*

*Current badly calibrated in control system: 721A in plot corresponds to 870 A real current

Total voltage all coils dI/dt

~ 1 hour

Peak=900 A


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Decay Solenoid•After successful powering up of decay solenoid on 24/04/09, we had a set-back:— Decay solenoid chiller fan burnt out morning 28/04/09— Burning smell detected— Linde fridge now turned off— Mike Courthold contacted Linde: fan sent by Linde (expected in

UK on 5/05/09 but will arrive RAL later this week)— Local team to install fan once it arrives this week.— Solenoid has been warming up all week

•Plans are being put together to fit a header tank for the demineralised water for the Linde DS chiller


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Schedule 2009•Previous shutdown finished 3 May 2009•ISIS runs 4 May - 28 June 2009

— Shielding inside ISIS was restored (decision by Executive Board to restore ISIS shielding until August shutdown)

— This will enable access to DSA — Currently no access to DSA until new radiation survey carried out

(during beam), but no beam probably until this Friday (Gordon Burns to carry out survey)

•Next shutdown 29 June - 2 July•ISIS runs 3 July - 16 August

— Expect Spectrometer Solenoid in MICE Hall

•Shutdown 17 August - 1 September— Install new target in beamline— Remove shielding from ISIS (detailed plan Willie/Andy, see next slide)

•ISIS runs 2 September - 25 October— Includes 15 days of machine physics

•Shutdown 26 October - 15 November•ISIS runs 16 November - 23 December


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Shielding removal August

• Proposed schedule for ISIS shielding removal (Willie Spensley):

1. Wednesday 19th August erect scaffold2. Twenty wooden pallets to be delivered to Synchrotron3. Thursday 20th August commence removal of shield steel plate

(Total mass 22.4 Tonne)4. From Thursday - Sunday we need to remove 5.6 tonne's per/day5. Monday 24th August strip down support frame6. Monday 24th August re-position Dipole 17. Monday 24th August make a request to ISIS Teams Mechanical &

Vacuum for the coupling of Water works to Dipole 1 and the re-installation of vacuum pipe work and Ion pump to commence 25th August

• Can accommodate schedule also if we have to wait 1 week for radiation cooldown

• Parallel work on target should not be issue since not in same area, different people involved and crane only needed for 1 day for target installation

• Executive board adopted this solution


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Installation items•Status of Target

— Report in this meeting by Chris Booth

•Air conditioning:— All A/C units now in their places (including the North

and South Mezzanines)— 6 holes drilles in West Wall to vent A/C— Ducting for all A/C units well underway — Electrical work also scheduled to be finished this week?

•Daresbury Lab team carrying out electrical work on main distribution boards. All power to magnet chillers isolated so cannot turn on magnets until this work finished by the end of this week

•North baseplate grouted last week. Intermediate side plate also arrived

•Dates for cleaning and decorating MICE Hall: 29 May-3 July. Need to protect all equipment with fire-resistant polyethylene.


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Installation items•Need beamline magnets on to test alarm handler

— Cooling water to magnets still needs to be reconnected— Chillers disconnected due to electrical work — Water cannot be restored to magnets until next week— Pierrick Hanlet at RAL from 26 May: will test alarms then.

•Detectors:— Luminosity monitor: talk at this meeting— CKOV

o New pressure and temperature monitoring sensors now installed

o Auto-alert set up by Craig and Linda, with the limits set by David Sanders. Can see the pressure and temperatures online.

o Missing is the integration into EPICS (proceeding slowly)o Spare HV power supply crate died – removed and sent for repair

— TOF0: OK— TOF1+KL: in hall but safely aside on top of South Wall

Mezzanine— Spectrometer solenoid: talk this meeting


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Tracker•The 4 trackers are currently in Lab 7

•Tracker cryostats— After power cut: pressure release

valves and emergency shutoff valves installed by Alan (all 4 installed and working)

— Install exhaust filter – this week— All pressure release valves tested— Installed emergency shutoff valves

on cryostats – all 4 installed and working

— Installed exhaust filter — CRYO 3 & 4 working stably at low

temp (~6K)o However, on 28/04/09 fuse for tracker readout system chiller blew.

o Fortunately, Malcolm present and a replacement fuse was found.

o Temperature went up to 45K in a few hours but after fuse replaced went back down to normal (~6K).

— Craig to reinstall dial-up alarm systems


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PPS and Absorber•PPS:

— Functional Safety Consultants (FSC) appointed by ISIS as firm responsible for ensuring all PPS systems fulfill functional safety code.

o Specifications, drawings and documentation need to be submitted for review.

o Andy Nicholls to meet with FSC and obtain quote.— Neutron monitor for DSA does not need to be in PPS, but instead will

provide a sound alarm.

•Absorber: — Tesla needs 10mm for extra thickness of bobbin end plate and increased

2mm thickness thermal radiation shield — Hydrogen Absorber and the feed pipes are already made and tested. — Proposal from Wing Lau (see MICO 20/04/09):

o Either shift absorber 15.4 mm upstreamo Or Tesla to agree to reduce certain parameters and MICE agree that coil pair be moved 10mm towards the centre

— Technical Board to consider this change: initial studies indicate that it has negligible effect on emittance measurement

o Ulisse Bravar showed 0.2% change in cooling for absorber displacement 9cm, (Analysis meeting 5 May)


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Online/Networking•Computing

— Need network connections to progress in Hall— Still cannot print on OKI printer in R76 but solution found with

Kevin Dunford (cost £150)— Wiring for wireless in R76 installed but still not available (also

Kevin Dunford).— Need to convert miceblm1 to Windows PC in MLCR – still

pending— Need connection to GRID from MLCR – pending

•Documentation inventory/overhaul - ongoing— Instructions for shifters – old documentation needs updating— Safety – need all relevant documents in one obvious place— Need to define run plan for September run

•Ray Gamet took over as MOM on 2 May•I had fun being MOM, thanks to everyone who helped me during my “learning curve”, particularly Linda, Willie and Andy

MOM Report

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