1 MICE Status UKNF Meeting 3rd May 2006 Malcolm Ellis

2 Introduction  Review of a range of MICE activities.  Areas touched on are: u Beamline (P. Drumm) u Target (C. Booth) u Tracker Review: s Mechanical (G. Barber and T. Matsushita) s KEK Analysis (H. Sakamoto and A. Fish) s QA (P. Kyberd) s Cryo (A. Bross) s Electronics (A. Bross) u Muon Test Area (Fermilab) u 201 MHz cavity at MTA (LBNL) u CKOV I (UCL & Mississippi) u DAQ (J.S. Graulich) u Frascati Test Beam plans (J.S. Graulich)

3 Beamline TTargetSheffield APion CaptureISIS BDecay SolenoidEID CMuon Transport Channel Liverpool DDiffuserOxford ESupport RailsLiverpool? Support Rails

4 Beamline Schedule  ISIS Shutdown u First indication during Osaka meeting u Now confirmed: s Starts: 22 nd December 2006 s Ends: 31 st August 2007 u Additional shutdown: s Mid Oct-mid November 2006 s Probably ditto in 2007  Within schedule – little slack  Completion of the hall work: u waiting for feedback of key information s Stairs s Mezzanine (Hydrogen System & Access) s Platform (support for MICE) u Window for Solenoid Commissioning with Cryogenics

5 Target  Focus of recent work has been assembly tests at RAL last week. u Review of components u Results of tests u Preliminary follow-up plans  Components: u Stator body u Ceramic tube u Glass readout tube u Target shuttle u Ceramic bearings u Electronics u Frame, jack, bellows, gate-valve

6 Target Assembly Test 24 th -28 th April  First time many parts came together: u Stator first connected to electronics 20 th u Glass readout tube assembled 21 st u Target shuttle finished morning of 24 th u Some RAL parts and flanges not previously assembled. Still digesting results of last week! Despite problems, a lot was learned.  Practical details of assembly for first time.  Improved design of major components.  No proper vacuum tests.  No reliability or vibration tests.  Review (with ISIS) 16 th May.  Will repeat assembly in hall.  Unlikely to install in ISIS for June – perform thorough off-line checks for October access.

7 Tracker Mechanical  Station Assembly: u Receive doublet-layers from FNAL u Visual inspection of the doublet-layers for any damage caused in transit u Align the doublet-layers on a vacuum chuck u Bundle seven fibres with rubber sleeves (QA) u Thread the bundle into a station connector (QA) u Put the vacuum chuck on an assembly jig u Fix a carbon-fibre station to the assembly jig u Glue the doublet-layers to carbon-fibre station u Attach doublet-layers connectors to the carbon-fibre station u Cut the fibres u Pot the fibres u Polish the fibres

8 Tracker Installation Tracker installation procedure presented at Tracker Review

9 KEK Analysis  Light yield is estimated by fitting the peak with gaussian.  Measured light yield is similar to the result of cosmic-ray test. Station BACD 3HF Concentration (ppm) 5000 mixture2500 Gain of cassette Low High Measured light yield (p.e.) Data from Cosmic-ray test n/a This peak is caused by ADC saturation.

10 Comparison between KEK and Cosmic Ray Analyses  KEK beam test was performed in the fall of  Stability of VLPC are checked. u Pedestal peak is within 1 count, u Pedestal width is within 1-2%, u Gain is stable within 2%, and u Noise rate is within 5-8%.  Light yield and efficiency are studied with 3GeV/c pion beam without B-Field. Station BACD 3HF Concentration (ppm) 5000 mixture2500 Gain of cassette Low High Measured light yield (p.e.) Light yield from Cosmic-ray test n/a Measured efficiency (%) Expected efficiency (%)

11 Tracker QA Plane held on vacuum chuck Scanning system: Scanning table LED and collimation and focussing system

12 Bundling QA Bundle fibres up into sevens – do about 10 bundles. Hold the fibres together with a rubber sleeve (already used to make the prototype) For these pictures 370nm was used throughout 7 fibres Place the bundles in a “comb” to hold them together and in place

13 Fibre Imaging Once the station connectors have been cut and polished. At this stage we measure light output. We will also make this measurement on the old stations which have been disassembled – this will allow us to validate the UV measurements against the test beam results

14 Effect of UV on Fibres Hitachi U4100 sample compartment Measure effect of UV irradiation on the fibres. Using high performance photometer High precision fibre launcher Compartment modified to take optical rails and other components Detectors & integrating sphere Aperture

15 Tracker Cryo  MICE VLPC Cryo u 2 – 1024 Ch VLPC Cassettes in each system s Two systems per tracker- 4 Total for MICE + 1 Test Stand u Sumitomo GM Cryocooler s Cold-end operating point at approximately 7K u Cassette Gas system u Lid Heater and temp control circuitry u Vacuum pump

16 Prototype Cryostat

17 Cryostat Performance  Typical Cooldown

18 Temperature Control  Two stage Control u Heat applied to 2 nd stage of cryo-cooler (7K) s Commercial Oxford temperature controller u Heaters in cassette (1 per module) control to final set point (9K)  System controls to better than 10 mK u Spec – 50 mK  However running with 50Hz power (KEK), left cassette heaters were barely on – almost no control from cassette u Thermal link 1 Count=1 mK

19 Cryo Status & Plans  The Prototype MICE VLPC cryo-system has been operated successfully for many months both at Fermilab and KEK  All design specs have been met except for a left-right temperature asymmetry u Thermal link design has been modified s This will be tested as soon as the Fermilab shutdown is over (June 06)  Cryo-coolers have been delivered  Cryostat parts are on order – expected delivery is mid-June 06.  All systems will be assembled, tested, and commissioned by the end of the calendar year

20 AFEIIt Status  The AFE IIt pre-production boards (15) have been tested to D0 spec  The first boards came up very quickly u In about 1 hour u No green wires!  TriPt testing is done u Yield is about 80% u More than enough chips for D0 + MICE + Spares for both experiments s Plus second pass could yield more  Production Order released April 18th u About 14 week lead for delivery of all boards s But many will arrive earlier  The critical issue for MICE is MICE-specific firmware development for AFE IIt u NOT a Trivial amount of work

21 AFEIIt Test Stands  The MICE IIT group has assembled an AFE test stand and will be responsible for testing left hand production boards u Part of Negotiated agreement that led to D0’s donation of AFE IIt boards to MICE  In Addition an AFE IIt test stand has been assembled at RAL u Board maintenance u Firmware development

22 Muon Test Area Complex

MHZ Cavity at the MTA

24 Results from Preliminary Test  Conditioning started in late February 2006 with u Flat copper windows (plates) with Ti-N coatings u RF diagnostics u Good vacuum ~ high Torr  Without an external magnetic field, the cavity conditioned very quietly and quickly to reach ~ 16 MV/m  Limited by available RF power.  Test plan being developed: u External magnetic fields u Achievable gradients vs magnetic field u Curved Be windows.

25 CKOVI

26 Sr 90  Source reflector cone aerogel trigger 8” pmt Sr90

27 CKOVI Road Map Summer ‘06  = FNAL 1x1x1 module white reflector Measure pe yields Model Rayleigh Scattering Scattering vs Absorption~ 0 Transmission vs Aperture 3x3 or 4x4 Spring ‘07 Aerogel purchase Begin Assembly Fall- 06 Mechanical fabrication Reflectors/Cones CKV01 Summer ‘07

28 DAQ & Frascati Test Beam  Preparation for the test of PID detector components and potential front end electronics at a test beam at Frascati in the summer.  Stand alone DAQ is being built for this (not reusing UniDAQ system developed for KEK tests).  Work being done at University of Geneva.  Stand alone, local DAQ u DAQ Reduced to minimum: Local Start/Stop of Runs (no remote Run Control -> no DAQ framework, no event building) Write data on local Disk Readout particle per particle No interrupts  VME-PCI interface: CAEN V2718 only  Limited number of FEE modules supported u TDC V1290 u QDC V972  Only 2 Event types: u Particle Event u Calibration Event

29 Status (19 th April 2006)  Manpower: J.S. Graulich and 1 undergraduate student  Software for V2718: 80% done u All fundamentals are done: Read and Write in A32/D32,D16 Read in BLT32, BLT64 Basic I/O Register (2 Inputs, 5 Outputs)  Software for V1290: 80% done u Only tested with V1190, should be easily transported to V1290 u Not fully commissioned yet  Software for V792: 40% done u Work in progress  Software for run control: 25% done u Working on User interface

30 First Results & TBD  Readout rate of V1190 u 27 Mbytes/sec in BLT64 -> 5 ms to read the full V1190 buffer memory (Readout of the tracker would require at least 40 Mbytes/sec… already obtained with BIT3 interface -> we might have to deal with 2 different interface. No impact for BTF)  I need some inputs u Define needs for calibration u Define needs for online monitoring u Define needs for other FEE modules  Tests of QDC FEE options will start in background  Organize transport of my PC… u When is the test beam ?