MICE CMPB Alain Blondel 1 August 2007 1 spokesperson remarks CMPB MICE NEWS

1MICE CMPB Alain Blondel 1 August 2007

spokesperson remarksCMPB

MICE NEWS


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 -->


FURTHER NEWS

1. Since March 25, Malcolm Ellis is keeping a MICE NEWS page. http://hep04.phys.iit.edu/cooldemo/news/weeklydigest.html

2. MICE Installations/commissionning/operations group MICO is now operational. (last meeting on 26 July)

3. MICE is now an INFN recognized NTA (New Technologies for

Accelerators) project: travel money from INFN and funds awarded by RAL end of year budget can be used.

4. EUROnu Design study proposal is very well ranked.

5. preparations for accelerator IA EU-proposal are underway with, for MICE

-- access program to MICE@RAL -- training program (students and postdocs???) -- work packages on RF cavities surface studies (R. Saviour at

Liverpool), and 200 MHz power source (Montesinos at CERN)


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


Leaded bronze bearings after 1.5 M pulses

<-- Brass bearing after x pulses


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?


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 M. Zisman's 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.

NB these are typical technical coordinator actions... ... we stumble on those at the moment


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)


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 JSGraulich and VVerguilov. 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)


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


this shows cable routings, control room etc...and was sent to all MICE for verification(A. Oates)


THE DIPOLE B2 in place(recess position)


Aspirational MICE Schedule as of july 2007

1 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

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MICE CMPB Alain Blondel 1 August 2007 1 spokesperson remarks CMPB MICE NEWS