Tracker Summary Makoto Yoshida Osaka Univ. MICE Frascati June 28 th, 2005

Talks in tracker session Emittance measurement simulation update (C. Rogers) Emittance measurement simulation update (C. Rogers) Tracker software status (M. Ellis / A. Bross) Tracker software status (M. Ellis / A. Bross) Tracker Status (G. Barber / K. Long) Tracker Status (G. Barber / K. Long) Tracker electronics update (A. Bross) Tracker electronics update (A. Bross) Tracker DAQ (M.Yoshida) Tracker DAQ (M.Yoshida) KEK beam test strategy (K. Yoshimura) KEK beam test strategy (K. Yoshimura) KEK beam test analysis (M. Yoshida) KEK beam test analysis (M. Yoshida)

Tracker Software Status M. Ellis MICE Collaboration Meeting 27 th June 2005

Progress so far G4MICE has been extended to handle calibration, alignment and decoding information. Further work is needed before it will be ready to be committed. Visualisation framework has been developed (based on the libsx wrapper of X) with a simple test program that can be extended to handle both test-beam and simulation needs. Pattern recognition and track fitting code modified to work with no magnetic field.

Visualisation

Plans Due to lack of effort available, G4MICE activities will take a second priority to test- beam readout until it is finished. At that stage, work described so far will be completed, hopefully in time to be used for monitoring and analysis of test-beam data. If time is available, still aim to study optimum station spacing before next collaboration meeting.

K.Long/G.Barber Sci-Fi Tracker Status 27 June Tracker Status Contents:- Station Fabrication Modifications to the Existing Stations Mechanical Support Station Connectors Complete Prototype Changes for Final Tracker

K.Long/G.Barber Sci-Fi Tracker Status 27 June 2005 Complete Prototype (Prior to outer covers being fitted) Status – The completed prototype was shipped to FermiLab 20 June for cosmic ray tests and will then be forwarded to KEK for the beam tests

K.Long/G.Barber Sci-Fi Tracker Status 27 June 2005 Patch panel, diffuser support and iron shield Stephanie Wang, Wing Lau and Geoff met to discuss space at the end of the tracker Issues were: –Support of diffuser mechanism Avoid compromising integrity of vacuum-vessel seal –Support of iron sheild Avoid possibility that support for shield will interfere with patch panel

K.Long/G.Barber Sci-Fi Tracker Status 27 June 2005 Drawings from Stephanie

K.Long/G.Barber Sci-Fi Tracker Status 27 June 2005 Drawings from Stephanie

K.Long/G.Barber Sci-Fi Tracker Status 27 June 2005 Changes for Final Tracker The stations will have a thickened pad around the 6 fixation points. This will allow for machining to ensure a uniform thickness. A quality control regimen needs to be in place for each stage of construction/assembly Waveguide patch panel connectors will need to be ‘turned around’ The location/relocation mechanism in the bore of the cryostat will need to be designed and tested The Patch panel will need the final design and pressure calculations completed Vacuum test of station assembly to be performed over the summer Plan to construct a model of complete device to ensure no space conflicts during manufacture or installation

MICE Tracker Electronics Update Progress towards a tracker test at KEK

Status: VLPC System  The VLPC system is complete and operating to spec u Can easily control to the 9K spec. s With heaters off T=5.3K  Uses a Sumitomo SRDK-415D Cryo- cooler. u This is the unit we plan to use throughout MICE

Status: Cryo System  Full Commissioning done – Performance To Spec!!! Operating period#1 March 30 #2 April 11 #3 April 22 #4 April 28 Design Values Stage 1 lowest55 K47 K41 K 47 K 45 Kelvin Stage 1 heat load50 Watts45 Watts38 Watts55 W50 Watts Stage 2 lowest14 K7.9 K7.2 K5.3 K5.5 Kelvin Stage 2 heat load22 Watts10 Watts7 Watts3 to 4 W3 Watts Slot 1, Cass#105?20.7 K16.8 K7.5 K8 Kelvin Slot 2, Cass#111?20 K K8 Kelvin

Status:Electronics  The system will use 4 AFE II boards from D0. These are now working 512 ch ADC Discrim. TDC in next version

Status Electronics  6 AFE II boards have now been fully tested and are available to MICE u All Channels tested u Temperature and bias control operation u LVDS readout functional  Still need to run the boards through the temperature and bias control calibration test stands

Timescale  Next two weeks u Get 4 board readout working u Get sequencer controller replacement working  July u Calibrate VLPC Cassettes  July u Cosmic Ray Test  August 1 u Pack and Ship to KEK  August 8-12 u Preliminary setup and shakeout at KEK s At least operate VLPC cryo 大丈夫

Tracker DAQ Makoto Yoshida (Osaka Univ.) MICE Frascati 2005/6/27

Status Setup LinuxPC with Bit3 VME interface at Fermilab in Dec Setup LinuxPC with Bit3 VME interface at Fermilab in Dec Start porting the Windows VB routines to C codes on Linux PC Start porting the Windows VB routines to C codes on Linux PC Successful readout pedestal data on a AFEII board in the end of May. Successful readout pedestal data on a AFEII board in the end of May. Initialization AFE boards via 1553 Initialization AFE boards via 1553 Control SASeq Control SASeq Readout buffer module, VLSB Readout buffer module, VLSB GUI is prepared for the test GUI is prepared for the test VME ADC and TDC modules have been tested in May KEK beam test to readout TOF, ACC and other beam counters in UniDAQ framework VME ADC and TDC modules have been tested in May KEK beam test to readout TOF, ACC and other beam counters in UniDAQ framework

Tracker DAQ at Fermilab AFEII Backplane Cryocooler Bit VLSB SASeq

To do for KEK beam test Extend slow-controller to handle 4 boards of AFEII Extend slow-controller to handle 4 boards of AFEII Implement AFEII readout routines on UniDAQ framework Implement AFEII readout routines on UniDAQ framework Merge AFEII data with the other ADC/TDC data Merge AFEII data with the other ADC/TDC data Integration test at Fermilab Integration test at Fermilab Time stamp of integration window on Trip chip Time stamp of integration window on Trip chip Tracker prototype will be shipped from UK in July Tracker prototype will be shipped from UK in July LED and Cosmic-ray data taking LED and Cosmic-ray data taking Setup the system in KEK in Aug. Setup the system in KEK in Aug.

To do for MICE Event-buffering in VLSB Event-buffering in VLSB Need to trigger 1MHz (1k muons in 1msec from ISIS) Need to trigger 1MHz (1k muons in 1msec from ISIS) Implement zero suppression scheme Implement zero suppression scheme Bench mark test of readout speed Bench mark test of readout speed Establish event numbering scheme / synchronization to the other counters Establish event numbering scheme / synchronization to the other counters

KEK beam test Check the performance of prototype tracker at KEK-PS  2 beam line Check the performance of prototype tracker at KEK-PS  2 beam line Step 0 Step 0 Feb Feb Step 1 Step 1 May 2005 May 2005 Step 2 Step 2 Sep (not yet approved) Sep (not yet approved)

Q3 Q4 D4 Setup TOF hodoscope Defining Counters Aerogel T1 2cm-thick scintillator Diffuser

Timing resolution w/ and w/o magnetic field Solenoid ON  = 77ps  TOFcounter=65ps Solenoid OFF  = 80ps  TOFcounter=68ps The system can measure time of flight with 80ps resolution even in the fringe magnetic field  need more offline work to obtain better resolution than 70ps 3GeV/c  - After time walk correction

ACC performance 0.425GeV/c Negative   ee

Diffuser study Mag. ON Mag. OFF Pb: 0  x : 6.6 cm  y : 6.4 cm Pb: 5mm Pb: 10mm Pb: 15mm Pb: 20mm Beam divergence w/o solenoid increase to -0.3GeV/c

Muon yield in low momentum beam -0.3GeV/c -0.4GeV/c 5475  16min =6Hz 9000  10min =15Hz ee   TOF distributions

Summary of Step 1 (May2005) Beam test with SC solenoid was performed at KEK-PS  2 beam line during May 26 th – June 2 nd Beam test with SC solenoid was performed at KEK-PS  2 beam line during May 26 th – June 2 nd TOF performance was checked in magnetic field TOF performance was checked in magnetic field Intrinsic resolution of the counter better then 70ps Intrinsic resolution of the counter better then 70ps Resolution of the TOF system ~ 80ps Resolution of the TOF system ~ 80ps Need more careful offline work Need more careful offline work New ACC (refractive index = 1.05) was tested New ACC (refractive index = 1.05) was tested good performance to discriminate  /  /e at 0.425GeV/c good performance to discriminate  /  /e at 0.425GeV/c Beam parameter was surveyed to be optimized for Autumn beam test Beam parameter was surveyed to be optimized for Autumn beam test The effect of lead diffuser was measured, will be compared with simulations. The effect of lead diffuser was measured, will be compared with simulations. VME ADC/TDC modules were tested to take beam data VME ADC/TDC modules were tested to take beam data Ready to test tracker prototype in autumn  Step 2 Ready to test tracker prototype in autumn  Step 2