11

G4MICE Analysis of

KEK Test Beam

G4MICE Analysis of

KEK Test BeamAron Fish

Malcolm EllisCM15

10th June 2006

22

ContentsContents

• KEK Test Beam Set Up• KEK Visualisation (MICEModel)• G4MICE Status• Data set• TOF Set Up• TOF Analysis• Sci-Fi Tracker Prototype• Sci-Fi Tracker Analysis• Summary & Next Steps

• KEK Test Beam Set Up• KEK Visualisation (MICEModel)• G4MICE Status• Data set• TOF Set Up• TOF Analysis• Sci-Fi Tracker Prototype• Sci-Fi Tracker Analysis• Summary & Next Steps

33

KEK Test Beam Set UpKEK Test Beam Set Up

Purpose: Test performance of Tracker prototype in 1-Tesla magnetic field.

44

MICEModel work in G4MICE

MICEModel work in G4MICE

• The MICEModel in G4MICE is used to represent any stage of MICE in any level of detail.

• Representations of the model are produced for specific purposes (Simulation, Reconstruction, Visualisation…).

• I will just mention the code and files implemented for the KEK Test Beam.

• The Model allows us to have the same geometry for the Reconstruction of Data and Geant4 Simulation, so that they can be compared.

• Configuration files have also been implemented, which list the material, location and orientation etc. of each module in the MICEModel (TOF, SciFi…) with respect to the other modules.

• Configuration files have now been implemented including all the MICEModules (Detectors, Magnets, AFCs…) by Ben and Mike + others for all 6 stages of MICE situated in the Hall at RAL. M. Ellis will talk about this more in the software summary talk tomorrow.

• The MICEModel in G4MICE is used to represent any stage of MICE in any level of detail.

• Representations of the model are produced for specific purposes (Simulation, Reconstruction, Visualisation…).

• I will just mention the code and files implemented for the KEK Test Beam.

• The Model allows us to have the same geometry for the Reconstruction of Data and Geant4 Simulation, so that they can be compared.

• Configuration files have also been implemented, which list the material, location and orientation etc. of each module in the MICEModel (TOF, SciFi…) with respect to the other modules.

• Configuration files have now been implemented including all the MICEModules (Detectors, Magnets, AFCs…) by Ben and Mike + others for all 6 stages of MICE situated in the Hall at RAL. M. Ellis will talk about this more in the software summary talk tomorrow.

55

MICEModel Set Up of KEK Test Beam

MICEModel Set Up of KEK Test Beam

T1 & R1 Counters

ACC

Pb Diffuser

TOF Hodoscope(Blue & Green Slabs)

Solenoid (White)

66

MICEModel Set Up of KEK Test Beam

MICEModel Set Up of KEK Test Beam

T1 CounterR1 Counter

ACC

Pb Diffuser

77

MICEModel Set Up of KEK Test Beam

MICEModel Set Up of KEK Test Beam

88

MICEModel Set Up of KEK Test Beam

MICEModel Set Up of KEK Test Beam

99

MICEModel Set Up of KEK Test Beam

MICEModel Set Up of KEK Test Beam

1010

G4MICE StatusG4MICE Status• The TOF Decoding, Cabling & calibration files & code have

now been written and used in G4MICE.• Atsushi’s time walk corrections have been used and

implemented into G4MICE. • The TOF Reconstruction code has now been produced

including “TofSlabHits” & ”TofSpacePoints”.• VLPC decoding used is that from Osaka (jp map 12).• VLPC calibration used is that made by Malcolm in

November 2005.• Common Mode Noise algorithm updated (use similar

technique to that described by Hideyuki).• Clustering algorithm unchanged (2.0 PE total light in a

cluster, neighbouring hits are summed).• Space point code now takes into account arbitrary

rotations and misalignments (no longer requires trackers to be perpendicular to the Z axis!).

• Track reconstruction used for this analysis not final one.

• The TOF Decoding, Cabling & calibration files & code have now been written and used in G4MICE.

• Atsushi’s time walk corrections have been used and implemented into G4MICE.

• The TOF Reconstruction code has now been produced including “TofSlabHits” & ”TofSpacePoints”.

• VLPC decoding used is that from Osaka (jp map 12).• VLPC calibration used is that made by Malcolm in

November 2005.• Common Mode Noise algorithm updated (use similar

technique to that described by Hideyuki).• Clustering algorithm unchanged (2.0 PE total light in a

cluster, neighbouring hits are summed).• Space point code now takes into account arbitrary

rotations and misalignments (no longer requires trackers to be perpendicular to the Z axis!).

• Track reconstruction used for this analysis not final one.

1111

Low Momentum Data Set

Low Momentum Data Set

• 250 MeV/c• B = 0, = 0: Runs 1426 & 1427• B = 1, = 3: Runs 1360 & 1367

• 325 MeV/c• B = 1, = 3: Runs 1376, 1381 & 1382• B = 1, = 6: Run 1342

• 250 MeV/c• B = 0, = 0: Runs 1426 & 1427• B = 1, = 3: Runs 1360 & 1367

• 325 MeV/c• B = 1, = 3: Runs 1376, 1381 & 1382• B = 1, = 6: Run 1342

1212

High Momentum Data Set

High Momentum Data Set

• 3 GeV/c• B = 0, = 0: Runs 1257, 1258 & 1272• B = 0, = 6: Runs 1291, 1292, 1293, 1294,

1297, 1300, 1302, 1303, 1304, 1306, 1307, 1309 & 1311

• B = 1, = 6: Runs 1315 & 1317

• Total 396762 triggers (98408 low, 298354 high)• 62573 pass cuts (L1A and tracking)

• 10781 low• 51792 high

• 3 GeV/c• B = 0, = 0: Runs 1257, 1258 & 1272• B = 0, = 6: Runs 1291, 1292, 1293, 1294,

1297, 1300, 1302, 1303, 1304, 1306, 1307, 1309 & 1311

• B = 1, = 6: Runs 1315 & 1317

• Total 396762 triggers (98408 low, 298354 high)• 62573 pass cuts (L1A and tracking)

• 10781 low• 51792 high

1313

TOF Set Up (KEK)TOF Set Up (KEK)PMT

Light guide

Scintillator

5 X 5 Hodoscope

1414

TOF Analysis 1TOF Analysis 1

BlackBlack: 3 GeV/cRedRed: 325 MeV/cBlueBlue: 250 MeV/c

1515

TOF SelectionTOF Selection

“High P”

“Low P Electrons”

“Low P Muons”

1616

L1A SelectionL1A Selection

1717

Sci-Fi PrototypeSci-Fi PrototypePrototype Tracker consisted of 4 stations.Stations B & D - 3 ViewsStations A & C - 2 ViewsReadout - VLPCs, AFEII, Cryostat.

X View V View W View

Station D 2,500 ppm

2,500 ppm

5,000 ppm

Station A mixture 5,000 ppm

Station C 5,000 ppm

5,000 ppm

Station B 5,000 ppm

2,500 ppm

3,500 ppm

1818

VLPC HitsVLPC Hits• Common

Mode Noise algorithm now similar to that used by Osaka group.

• Pedestals and gains those presented on 18th November 2005.

• Common Mode Noise algorithm now similar to that used by Osaka group.

• Pedestals and gains those presented on 18th November 2005.

1919

Sci-Fi Space PointsSci-Fi Space Points

2020

SciFi Space PointsSciFi Space Points

2121

2222

2323

2424

2525

2626

2727

2828

2929

3030

3131

3232

3333

Sci-Fi Summary 1/2Sci-Fi Summary 1/2Low mom.

Low mom.

eHigh mom.

Station A Plane V

9.51 8.14 8.00

Station A Plane X

9.98 8.12 7.98

Station B Plane V

9.13 8.21 7.22

Station B Plane X

8.37 7.31 7.21

Station B Plane W

9.74 8.73 8.58

Station C Plane X

9.74 9.41 9.18

Station C Plane W

11.0 8.76 8.86

Station D Plane V

5.96 4.48 3.57

Station D Plane X

5.98 5.15 4.49

Station D Plane W

5.02 5.28 4.28

3434

SciFi Summary 2/2SciFi Summary 2/2

Low mom.

Low mom. e

High mom.

Cosmic Rays

Old 2500

9.13 8.21 7.00 10.6

Old 3500

9.74 8.73 8.58 10.3

Old 5000

9.53 8.33 8.16 8.96

New 2500

5.98 No Plot 4.91

New 5000

5.92 5.28 4.76

3535

Summary & Next Steps…

Summary & Next Steps…

• Implement correct digitisation of TOF in DetResp.

• Update Persist package to take into account modified TOF and SciFi classes (new methods).

• Test each stage of the Reconstruction (hits, clusters, points, tracks, matching) using the Geant4 simulation of test beam.

• Test Reconstruction of real data (TOF & SciFi).

• Implement correct digitisation of TOF in DetResp.

• Update Persist package to take into account modified TOF and SciFi classes (new methods).

• Test each stage of the Reconstruction (hits, clusters, points, tracks, matching) using the Geant4 simulation of test beam.

• Test Reconstruction of real data (TOF & SciFi).