1MICE VC Alain Blondel 2 August 2007
Summary of the MICO meeting26 July 2007
OverviewTarget (CB)Beam line engineering & installation (CN)ToF0 (MB)CKOV (GG / LC)ToF0 & CKOV integration (WL)Spectrometer
spectrometer magnet (MZ)tracking detector (KL)Integration (SV / KL / WL)
Diffuser (WL)Control room (PK)Network (AO)DAQ (JSG)Controls Infrastructure (BM)Electrical Installation (IM)Mechanical Services (CN)AoB
see details in MICO meeting web page http://hep04.phys.iit.edu/cooldemo/ei/ins3/ins3.htmland summary in MICE note 174
2MICE VC Alain Blondel 2 August 2007
Target (Sheffield; C. Booth and P. Smith)
•Target functioning reliably – 3.7 M actuations over 12 weeks.this is about what we expect from >1 year of operation of MICE
Bearing wear considerably reduced with use of leaded bronze
further studies to be done with Diamond-like Carbon
aim to install in early november
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Leaded bronze bearings after 1.5 M pulses
<-- Brass bearing after x pulses
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Dust at bottom of housing (after 1.5 M operations)
Expect <1% of this to fall in ISIS vacuum pipe
Is this acceptable to ISIS?
proposal will be discussed with Steve Pin, writen up and sent to David Findlay for approval.
Alternative – DLC (Diamond-like carbon) coated shaft & bearingsreceived new shafts from Oxford.Will send off shaft & bearings for commercial coatingTest will take at least 3 weeks (2 M pulses) once received.ready in october?
5MICE VC Alain Blondel 2 August 2007
Beam line engineering and installation(sketch!)
magnets Q1-3 and B1 installed, not connected to power and servicesMagnets Q1 and B1 have been measured
Sand bags will be requested in the hole from MICE to ISISonly after measurements in shielded area
Magnet B2 is in placein recess positionneed alignment, water, power
shielding is complete(today)
PSI solenoid will be moved there for cold test
Q4-Q9 refurbishment in this zone, Q4 is reassembledschedule for completion to be drawn
MICE Local Control Room MLCR to be finished in october
Linde plant
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THE DIPOLE B2 in place(recess position)
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PSI solenoid
successful repair with help of Walter Gloor one of the tie-rods to the cold mass had also fallen off. Magnet is actually in good condition. Plan is to finish off repairs at front of solenoid, MLI insulation and replace the cover.
Next is cold test and Linde refrigerator will be needed, but there is a legal issue as the certification of the whole assembly by Linde is missing (not just parts).
next is collecting cold box etc... timescale is September mid October the latest. The position in the hall for cold testing is on the south side of the hall It does not interfere with possible test or installation of detectors on the beam line.
Action keep pushing for the Linde contract to be signed. (Tom Bradshaw)
8MICE VC Alain Blondel 2 August 2007
Tracker-- 9 tracker stations have been completed by now. (5 for one tracker) Still a few problems with the light validation bench. No dead channels seen and a few only have apparently a little less light. Main and urgent issuesthe need for specification of path of the low voltage cablesand need to define the fire alarm system to have permission take the spares from D0. Fermilab will go ahead with a design using the VESDA system.
Spectrometer solenoidon track and progressing well (See Steve V. talk) EXPECTED delivery of solenoid I at FNAL end december 2007and at RAL 2 month later (late february) after magnetic measurements. ==> start step II in April. began winding of second solenoid
Integration in solenoid (lau): PID shield being finalized with GhislainDiffuser drawings internally reviewed; external reviewers will be sent material asap.
NB these are typical technical coordinator actions... ... we stumble on those at the moment
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Magnet 1 Cold Mass after Banding
Coil M1
Coil M2End Coil 1
Center Coil
End Coil 1
Quench Protection System
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Magnet 1 Cold Mass Supports
Cold Support BandIntercept Clevis
Warm Support Band
Warm Adjustment Screw
Cold Band Bearing
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Magnet 1 Quench Protection System
Quench Protection ResistorsCold Diodes
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CKOV
Parts of the first (of 2) detector have arrived at RAL (+ L.Cremaldi and David) Customs overcome with 'magic words' – not totally smooth, but getting there!Aerogel, box, mirrors (From USA) and phototubes (from Trieste)will be ready in september second CKOV could be there for November. Support being build under supervision by W. Lau (Oxford)
TOF0/1 being built in Milano, delivery at RAL 1st November with laser calibration system
DAQ delivered by JS Graulich and V Verguilov. All installed in R12. --> DAQ workshop 23-25 July: -- interface with software and data storage-- transmission of knowledge to tracker group (James Leaver et al) -- empahsized need for Controls and Monitoring task (Daresbury) to begin(Target control, beam magnets, safety)
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DAQ -- Installation @ RAL
In R12 (East)
2 VME Crates- 2 Interfaces- 2 Trg Receiver- TDC V1290- Scaler V830- fADC V17241 PCs2 NIM Crate1 Network
Switch
2 Scint. + PMTfrom IC
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this shows cable routings, control room etc...and was sent to all MICE for verification (A. Oates)WBS leaders should look at the diagram of electrical and mechanical services, and find out if any requirements that are known to them are close enough to the foreseen outlets.
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MAIN MESSAGES
MICE is recovering from the major hickup (Project manager resignation) and associated collateral dammages (PSI solenoid, lapses of communication, delays in refurbishment of quads etc...) thanks to the dedication of many MICE and Ken Long and Chris Nelson in particular.
-- Priority #1 is to ensure that full beam line is ready for step I data taking at the end of the christmas shutdown (20 January)
-- It appears desirable and possible (though not certain at the moment) that beam provided by a simplified version of the beam line (target, Q1-Q3, B1, B2) could be operational in November together with a good fraction of detectors (CKOV, TOF, perhaps even the tracker) taking advantage of ISIS developments breaks in septembre and maintenance break on 4-8 November.
-- this is a natural step in the debugging of the beam line and would allow major test of the part of the beam line that is installed in the ISIS vault (--> possible fixes in the Xmas shut down) -- calibration of pions/ISIS irradiation, a major unknown at the moment. -- shake-down of the detectors and DAQ, installation in the control room -- generally keeps the momentum rolling and avoids work pilup in february
Meanwhile detectors will be integrated with Cosmics in R12 mezzanineUncertainties concern target, PSI solenoid, controls and Hall installation;
The rest of MICE is on schedule
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Aspirational MICE Schedule as of july 2007
15 November 2007Or January 2008
STEP I
April 2008
STEP III July 2008
STEP II
STEP IV Delivery of 1st FCMay 2009
STEP V summer 2009
STEP VI end 2009 (or 2010)
UK PHASE I
UK PHASE II