SPOKESMAN’S UPDATEK. LongImperial College London/STFC

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Contents• Update

• Step IV• Construct/commission/operate/analyse

• Papers

• NuFact15

• CM43

2 August 2015

UPDATESpokesman’s update

2 August 2015 3

42 August 2015

52 August 2015

62 August 2015

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Permission to operate• MICE is now operating under:

• “MICE Operating Instructions 01”: • Finally signed-off (i.e. all signatures attached) 22Jul15• Method statements and risk assessments in place 12Jul15

• OPI:• Defines process by which safety assurance has been given

• Procedures, responsibilities, sign-off:• “Safety Reviews” page on MICEmine

• MICE procedures for commissioning and operation• Sign-off responsibilities for each step in magnet commissioning

• Update to procedures:• Additional access arrangements being made• Experience gained in magnet training now being applied• Revision to some procedures being discussed• This is within “MICE competence”:

• Revised procedures will be shared with ISIS

2 August 2015

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Magnet status• Upstream spectrometer solenoid:

• Issues identified in tests prior to training start

• Warm-up to rectify:• Issues (mis-wiring/insulation) addressed

• Now in pump-purge cycle• Cool-down will begin soon

• Downstream spectrometer solenoid:• Magnet and power supplies made

ready for training;• Initial training; 5 (of 15) quenches:

• Most recent 203A• Last quench:

• Power-supply/control issues:• Under investigation• Requires:

• Modifications to electrical h/w• E.g. lock-out/tag-out, magnet-off buttons

• Revision of some procedures

• Focus coil:• Magnet cooled down to

operating temperature• Power supply systems ready to

use• Thermal issue:

• Boil-off of LHe too fast• Thermal behaviour of cold mass

and thermal shield unsatisfactoruy• Many investigations

• Decision to warm up taken:• Monitor pressure (vacuum)• Gas composition

• Still need to diagnose cause of behaviour

2 August 2015

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Tracker• Reconstruction:

• In good shape:• Chris Hunt mentioned in dispatches

• In MAUS 1.0.0 – used for first full processing (see later and DR)

• Readout:• Essentially debugged:

• Ed Overton mentioned in dispatches!• Period to establish stability end August early September:

• Ed Overton and Paul Rubinov (September)

• Hardware: outstanding issues:• Hall probes in tracker volume:

• Installed, ready to go but:• Not read out, not recorded

• Essential that this is complete before magnet training restart• Leak in diffuser top-hat; requires removal of PRY end-plates

• A big deal• Install gas monitor on exhaust lines; then fill with He gas

2 August 2015

STEP IVSpokesman’s update

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Cycles 2015/01a and 01b• Data in the can:

• Field off data:• Large number of events through to TOF2;• Sufficient for straight-track alignment

• Field-on data:• One night-shift’s worth with:

• No field in SSU; 100A in SSD• Probably sufficient to work out magnetic axis of SSD

• Priority:• Complete alignment; may need bespoke belows

• Shift crews:• Working well; patience & flexibility; congratulations to all

• Expert cover:• An issue; particularly DAQ and detectors “DOC”

2 August 2015

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Processing of data

• See Durga Rajaram’s talk:

• First consistent processing of Step IV data done.• Excellent!

• Please use it!• We need to know what is good, what is not so good;• We all need to be working from the same source!

2 August 2015

PAPERSSpokesman’s update

2 August 2015 13

142 August 2015

EMR paper ready for collaboration; see F. DrielsmaPion contam: up to draft 3 of note (and paper) with wise people

Work organised; KL/CR discussing how to expedite preparation

Draft in preparation; wise people to be identified by EB

Draft at advanced stage: issue in track-fit being debugged

Draft assembled!

Draft beingassembled.

Draft under review in the EMR group

EMR paper in good shape. Pressure! KL paper catching up. The other papers …

NUFACT 2015Spokespersons update

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MICE talks at NuFact 2015

• Opportunity to promote our experiment

• Ball dropped on circulation draft talks …

• Please circulate a draft of your talk for comment:• Must be done sufficiently in

advance for people to comment

2 August 2015

CM43Spokespersons update

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182 August 2015