1

MICE PM Report

•Installations to date•Future installation work•Preparations for Phase Two•Target status

MICE Video Conference, 22nd May, 2008

2

Installations to Date

Good progress over the last few months:– Partial cold test of decay solenoid complete – liquid helium

demonstrated, compressor upgrade underway, full re-commissioning by 16th June

– South shield wall supports well underway– Pre-fabrication started for North support structure started– First plates arrive 22nd May– Concrete removal is done, structural weakness OK after all– False floor design making progress – difficulty with quench

forces, but now solved– Re-worked targets in progress, gate valve is open and

agreement to use current target some more – see later– Conventional magnet installation is complete, Q7,8,9 are

soak-tested and signed off

Don’t intend to cover detail here – see MICO page and MICE News pagehttp://mice.iit.edu/mico/http://mice.iit.edu/news/weeklydigest.html

3

Future Installations

For completion of Phase One we need to:– Install DSA roofing (ready to get quote)

• Installation in August now

– Build LH2 vent system (design in progress)• But this is a concern – not sure the access/labour/ISIS shielding

problems are really solved

– Final sign off of decay solenoid (mid-June)– Complete shield walls and install false floor (end July)

• First batch of shield plates arrive today

– Soak test and sign off all remaining conventional magnets (end May)

– Hall and DSA PPS operational (end July)• Delayed due to shortened May shutdown

– Complete electrical installation• Steve Griffiths has itemised and understood all the tasks, aiming

for July/August, but some delays inevitable as other parts are late

4

Installations to date

Concrete removal in progressOld photo, it’s actually finished

First shield wall support

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Preparations for Phase Two

Step One in progress– Sliding beamstop is designed and parts are being

ordered– Long lead time means we miss May shutdown though– Less sophisticated but cheaper static version will be

used (largely existing materials)But the real concern is late delivery of TOFs, due to PM problems

– Fall-back is to mount TOF0 outside the DSA, so we are de-coupled from the DSA access during shutdowns

6

Preparations for Phase Two

•Detailed WBS and bottom-up cost estimates are underway•Various options to fit within likely funding profile•RF Infrastructure project a significant part – previously not on anyone’s list•Mechanical integration drawings of each discrete MICE step are being prepared – better able to assess the work content that way.

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Preparations for Phase Two

Status of major beamline components:– Spectrometer solenoid

• Magnets being assembled by contractor, some minor assembly problems, solenoid #1 arrives at RAL August, #2 October

– Diffuser• Mechanical assembly almost complete at Oxford, test programme

agreed, physical integration trial with tracker at IC in July

– RFCC• Final design review at Collaboration Meeting in June. Biggest

component we fit, must not under-estimate the integration

– KL & TOFs• Ever closer to delivery, problems with PM tubes , but fingers

crossed KL itself and TOF & KL cables will be collected from Italy next week

– Solid spool piece and absorber• In manufacture at UNIGE and FNAL, delivery in August, leak test

at RAL

8

Target status

Good progress with the target at both Sheffield and RAL– All new mechanical bits for both new targets are at Sheffield– New QA for actuator coil assembly and testing have been

implemented– New coils (see above) are complete– Both target assemblies should be ready by the end of May– We miss the (now shortened) May shutdown to install the new

on-line target, but that’s OK:• ISIS are happy for us to continue running the existing target in

machine physics shifts• They have encouraged the target group not to hurry and to get a

realistic amount of testing done with the new targets• On & Offline targets will now be installed during August shutdown

(4th-28th)• The above is crucial to the success; it’s the trap we fell into last

time