tracker summary makoto yoshida osaka univ. mice cm @ frascati june 28 th, 2005

Tracker SummaryTracker Summary

Makoto YoshidaMakoto YoshidaOsaka Univ.Osaka Univ.

MICE CM @ FrascatiMICE CM @ FrascatiJune 28June 28thth, 2005, 2005

Talks in tracker sessionTalks in tracker session

Emittance measurement simulation update (C. REmittance measurement simulation update (C. Rogers)ogers)

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

27th 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.

9K.Long/G.Barber Sci-Fi Tracker Status 27 June 2005

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


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


Drawings from Stephanie


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

Can easily control to the 9K spec.

With heaters off T=5.3K Uses a Sumitomo SRDK-4

15D Cryo-cooler. This is the unit we plan t

o use throughout MICE

Status: Cryo System

Full Commissioning done – Performance To Spec!!!

Operating period #1March 30

#2April 11

#3April 22

#4April 28

Design Values

Stage 1 lowest 55 K 47 K 41 K 47 K 45 Kelvin

Stage 1 heat load 50 Watts 45 Watts 38 Watts 55 W 50 Watts

Stage 2 lowest 14 K 7.9 K 7.2 K 5.3 K 5.5 Kelvin

Stage 2 heat load 22 Watts 10 Watts 7 Watts 3 to 4 W 3 Watts

Slot 1, Cass#105 ? 20.7 K 16.8 K 7.5 K 8 Kelvin

Slot 2, Cass#111 ? 20 K 23.7 7.1 K 8 Kelvin

Status:Electronics

The system will use 4 AFE II boards from D0. These are now working512 chADCDiscrim.TDC in nextversion

Status Electronics

6 AFE II boards have now been fully tested and are available to MICE

All Channels tested Temperature and bias control operation LVDS readout functional

Still need to run the boards through the temperature and bias control calibration test stands

Timescale

Next two weeks Get 4 board readout working Get sequencer controller replacement working

July 18-22 Calibrate VLPC Cassettes

July 25-29 Cosmic Ray Test

August 1 Pack and Ship to KEK

August 8-12 Preliminary setup and shakeout at KEK

At least operate VLPC cryo

大丈夫

Tracker DAQTracker DAQ

Makoto YoshidaMakoto Yoshida(Osaka Univ.)(Osaka Univ.)

MICE meeting @ FrascatiMICE meeting @ Frascati2005/6/272005/6/27

StatusStatus Setup LinuxPC with Bit3 VME interface at FermilaSetup LinuxPC with Bit3 VME interface at Fermila

b in Dec. 2005b in Dec. 2005 Start porting the Windows VB routines to C codes on LStart porting the Windows VB routines to C codes on L

inux PCinux PC Successful readout pedestal data on a AFEII boarSuccessful readout pedestal data on a AFEII boar

d in the end of May.d in the end of May. Initialization AFE boards via 1553Initialization AFE boards via 1553 Control SASeqControl SASeq Readout buffer module, VLSBReadout buffer module, VLSB GUI is prepared for the testGUI is prepared for the test

VME ADC and TDC modules have been tested in VME ADC and TDC modules have been tested in May KEK beam test to readout TOF, ACC and othMay KEK beam test to readout TOF, ACC and other beam counters in UniDAQ frameworker beam counters in UniDAQ framework

Tracker DAQ at FermilabTracker DAQ at Fermilab

AFEII

Backplane

Cryocooler

Bit3

1553

VLSB

SASeq

To do for KEK beam testTo do for KEK beam test

Extend slow-controller to handle 4 boards of AFEIExtend slow-controller to handle 4 boards of AFEIII

Implement AFEII readout routines on UniDAQ fraImplement AFEII readout routines on UniDAQ frameworkmework Merge AFEII data with the other ADC/TDC dataMerge AFEII data with the other ADC/TDC data

Integration test at FermilabIntegration test at Fermilab Time stamp of integration window on Trip chipTime stamp of integration window on Trip chip Tracker prototype will be shipped from UK in JulyTracker prototype will be shipped from UK in July LED and Cosmic-ray data takingLED and Cosmic-ray data taking

Setup the system in KEK in Aug.Setup the system in KEK in Aug.

To do for MICETo do for MICE

Event-buffering in VLSBEvent-buffering in VLSB Need to trigger 1MHz (1k muons in Need to trigger 1MHz (1k muons in

1msec from ISIS)1msec from ISIS) Implement zero suppression schemeImplement zero suppression scheme Bench mark test of readout speedBench mark test of readout speed

Establish event numbering scheme / Establish event numbering scheme / synchronization to the other counterssynchronization to the other counters

KEK beam testKEK beam test

Check the performance of prototype Check the performance of prototype tracker at KEK-PS tracker at KEK-PS 2 beam line2 beam line

Step 0Step 0 Feb. 2005Feb. 2005

Step 1Step 1 May 2005May 2005

Step 2Step 2 Sep. 2005 (not yet approved)Sep. 2005 (not yet approved)

Q3Q4

D4

SetupSetup

TOF hodoscope

Defining Counters

AerogelT12cm-thickscintillator Diffuser

Timing resolutionTiming resolutionw/ and w/o magnetic fieldw/ and w/o magnetic field

Solenoid ON

= 77psTOFcounter=65ps

Solenoid OFF

= 80psTOFcounter=68ps

The system can measure time of flight with 80ps resolutioneven in the fringe magnetic field need more offline work to obtain better resolution than 70ps

3GeV/c -

After time walk correction

ACC performanceACC performance0.425GeV/c Negative

e

Diffuser studyDiffuser studyMag. ONMag. ON Mag. OFFMag. OFF

Pb: 0Pb: 0 x : 6.6 cmx : 6.6 cmy : 6.4 cmy : 6.4 cm

9.59.5

7.17.1

Pb: 5mmPb: 5mm 10.310.3

9.49.416.316.3

13.813.8

Pb: 10mmPb: 10mm 10.910.9

10.310.318.618.6

14.914.9

Pb: 15mmPb: 15mm 11.611.6

10.710.719.019.0

15.815.8

Pb: 20mmPb: 20mm 11.611.6

10.910.921.821.8

15.815.8

Beam divergence w/o solenoid increase to ~20cm/200cm=100mrad @15mmPb

-0.3GeV/c

Muon yield in low momentum Muon yield in low momentum beambeam

-0.3GeV/c

-0.4GeV/c

5475 16min=6Hz

9000 10min=15Hz

e

TOF distributions

Summary of Step 1 Summary of Step 1 (May2005)(May2005)

Beam test with SC solenoid was performed at KEK-PS Beam test with SC solenoid was performed at KEK-PS 2 beam line during May 262 beam line during May 26thth – June 2 – June 2ndnd

TOF performance was checked in magnetic fieldTOF performance was checked in magnetic field Intrinsic resolution of the counter better then 70psIntrinsic resolution of the counter better then 70ps Resolution of the TOF system ~ 80psResolution of the TOF system ~ 80ps Need more careful offline workNeed more careful offline work

New ACC (refractive index = 1.05) was testedNew ACC (refractive index = 1.05) was tested good performance to discriminate good performance to discriminate ///e at 0.425GeV/c/e at 0.425GeV/c

Beam parameter was surveyed to be optimized for AutumBeam parameter was surveyed to be optimized for Autumn beam testn beam test

The effect of lead diffuser was measured, will be comparThe effect of lead diffuser was measured, will be compared with simulations. ed with simulations.

VME ADC/TDC modules were tested to take beam dataVME ADC/TDC modules were tested to take beam data Ready to test tracker prototype in autumn Ready to test tracker prototype in autumn Step 2 Step 2

tracker summary makoto yoshida osaka univ. mice cm @ frascati june 28 th, 2005

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