MOM Report Paul Soler MICE Operations Manager University of Glasgow MICO April 27, 2009 March 23, 2009 Commissioning Needs-Coney
Commissioning Needs • Working Decay Solenoid – Powered up to 900 A, 24/04/09 Many thanks to Matt Hills, Jim Rochford, Mike Courthold, Craig Mac. Waters, James Leaver, Willie Spensley, Linda… — — Cooldown completed Thursday 16 April, temperature ~4. 5 K Fri 17 -20 April, quench detector (num 5) still not working. One vacuum pump remains off (tripped 18 April) Mon 20 April, ramped up to 400 A and Decay Solenoid coils go superconducting (first indication Multi-Layer Insulation working) — Between 21 -23 April: o Quench Detector (QD) problem diagnosed to broken wire within QD chassis o 2 A fuse associated with QD external relay chain blew and replaced with 5 A 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 (5 T B-field), where it remained for 1 hour before powering down once more. — Further tests to be carried out this week. Meeting 28 April to decide procedure for signing off decay solenoid for standard operations April 27, 2009 Commissioning Needs-Soler 2
DS Ramp Up 24/04/09 Peak=900 A 870 A* ~ 1 hour *Current badly calibrated in control system: 721 A in plot corresponds to 870 A real current Total voltage all coils d. I/dt April 27, 2009 Commissioning Needs-Soler 3
Commissioning Needs • Working target – Stands. . — one in R 78 for demo — one in ISIS for data • Detectors – — Tracker cryostats (Alan Bross at RAL last week) o All pressure release valves tested o Installed emergency shutoff valves on cryostats – all 4 installed and working o Installed exhaust filter o CRYO 3 & 4 now working stably and at low temp (~6 K) — CKOV o Need network connection and power in the DSA – info from new temp and humidity sensors not yet logged o Spare HV power supply that died still not replaced • Air conditioning — Ducting for A/C venting well underway towards 6 holes in West Wall — A/C unit placed on South Wall mezzanine • MICE-EB decided to delay removing synchrotron shielding until August shut-down. Upstream Decay Solenoid shielding reinstated April 27, 2009 Commissioning Needs-Soler 4
Issues • Documentation inventory/overhaul - ongoing — Instructions for shifters – old documentation needs updating — Safety – need all relevant documents in one obvious place • Computing — — — Need network connections to progress in Hall Still cannot print on OKI printer in R 76 Wireless in R 76 still not installed but network people aware of problem Need Windows PC in MLCR – still pending Need connection to GRID from MLCR – pending • Need beamline magnets on to test alarm handler — Water will be restored to magnets –this week? April 27, 2009 Commissioning Needs-Soler 5