G4MICE Analysis of KEK Test Beam
-
Upload
caesar-owen -
Category
Documents
-
view
42 -
download
2
description
Transcript of G4MICE Analysis of KEK Test Beam
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).