1

MICE PM Report

•Installations to date•Future installation work•Problems with the target•Plans for May shutdown•Magnetic shield wall•MICO organisation

MICE PSAG, 28th March 2008

2

Installations to Date

Good progress over the last few months:– Decay solenoid/cooling plant installation largely complete– Ready for cold test very soon, transfer line connected but

compressor will be uprated later by Linde– Conventional magnet installation is just about done– Preparations for concrete removal made – start cutting

today(!) Delayed by Linde fridge problems– cKOV a & b installed– Upstream vacuum chamber installed– Beam counters installed– On-line target has run, with permission for 5K more pulses

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

Installations to date

4

Future Installations work

•The Infrastructure Project is bigger than anyone thought, but now it’s untangled•The cost was underestimated, but we are now reconciled – see below:•It’s nominally a phase one activity, but it will run into phase two•Use of tracker readout and heavy work are incompatible•It will clash with the experiment build, data-taking and the ISIS run schedule•Minimally we have to remove the concrete ramp and build the false floor before we can do steps one and two with tracker•But a revised step one is agreed – see later•The Oversight Committee has told us:

– ‘Recommend the magnetic shield wall build goes ahead without delay’– In effect we have been given permission spend the money (about

£500K, which we didn’t have before) as soon as we can, based on the assumption that we finish at end of June

– This is an unambiguous instruction!

– We have done this; the big-ticket contracts are placed

5

Problems with target

Two sets of actuator coils have failed in the off-line target – likely insulation breakdown

– Permission to run existing on-line target 5K pulses – it’s OK, but we can’t be sure it doesn’t have the same problem

– Good news though – exactly what the offline target was for!– So the May shutdown is our new deadline– New targets being built by Sheffield with engineering

managed by DL• New actuator coils• Single coil high voltage test at manufacturer, based on DL test

and acceptance procedure• Complete as installed coils assembly also HV tested• Local coil housing re-design to reduce risk of strain on insulation

layers

– Encouraging news – existing target behaved perfectly with ISIS during limited run

6

Implications of Infrastructure Build

Option One, ‘original’ step one, just TOFs & KL:– Does not need false floor– Assumes target running by end Summer shutdown– Prefabrication of shield wall supports and plates order

are underway– TOF1 & KL are installed on existing high floor– Temporary fence around area is made– A sliding beamstop at West end of DSA– This way, we:

• Eliminate clash between tracker readout and heavy civil work as no tracker present

• Do some data-taking as early as possible• Satisfy OsC demand

– So I believe that step one (revised) and infrastructure build can be concurrent

7

Implications Of Infrastructure Build

Beam stop

KL

TOF1

Q7,8,9

Movable beamstop

DSA

cKOVTOF0

Fence/roof?

LIM

IT o

f E

XIS

TIN

G F

LO

OR

Shield Wall South

Shield Wall North

8

Future Installation work

•Concrete removal started•False floor design basically complete

– Flexible arrangement to accommodate unknown RF distribution layout OK now but more difficult than we thought! Final drawing approval by mid-April, fabrication will start then

•Contracts for shield wall supports and plates have been placed – pre-fabrication has started•A/C units delivered end April. Power is laid in, supplier to do installation•Revised step one can start with delivery of KL, TOF1 and sliding beamstop (May/June) Floorplan is marked out.•New targets #1 & #2 are underway

– Improved QA and test procedure to address actuator coil problems

9

May shutdown plans

We need to:– Install TOF0– Dismantle existing target– Install DSA roof, walkway and fence– Install and commission target #1 & #2– Excavate mound against South Wall– Install sliding beamstop– Finalise PPS for DSA

Owners of these tasks have been invited to give their plans – will work into overall schedule

I’m assuming access to DSA from 18th May to 9th June

Acting MOM during this period – P Kyberd, M.Ellis?

10

Magnetic shield wall

Steady progress:– OsC recommendation in Feb to continue full speed

with infrastructure– South support structure – contract with Regal

Engineering – off-site fabrication started– Wall plates (North and South) – successful OJEU tender

– contract placed with Charles Day Steels Sheffield– North support structure – drawings approved,

permission from contracts NOT to tender – we can also go with Regal

– Believe we have resolved the conflict with experiment build and heavy steelwork

– Phased delivery of plates possible – Tim Hayler is negotiating with Charles Day – shouldn’t be a problem

– 3D CAD installation plan for plates done– Costs are within framework agreed with OsC

11

Magnetic shield wall

12

MICO Organisation

MICO meetings are now weekly– Mondays, 14:30 GMT – details at MICO webpage– Each sub-project has a nominated contact who

delivers a five-minute report– Milestone table is reviewed weekly– Concentrate on problems and solutions Milestone complete

>30 days away

<30 days away

Passed & not complete

Milestone to be highlighted at meeting

TaskBaseline

Status Revised Date

Notes

March shutdown start

14/3/08

March shutdown finish

27/3/08

May user run start

6/4/08

May user run end 15/5/08

Permanent BPS ???