sct simulation for ctb2004 - status and howtos

April 2, 2004, Athena tutorial, FZU, Prague Zdeňka Broklová 1

SCT Simulation for CTB2004

- Status and HowTos

Zdenka Broklova, Carlos Escobar, Peter Kodys

Special thanks to Thijs Cornelissen, Grant Gorfine, Pavel Nevski, Pavel Reznicek, Sasha Rozanov, Manuel Gallas, Vakho Tsulaia and many others for their help.

Our status, results and HowTos are summarized on

http://ific.uv.es/~cescobar/simulation.html


History

• December 03: - familiarize with Athena, simulations and NOVA database

• January 04: - creation of endcap modules andtestbeam geometric setup

• February 04: - simulation and digitization• March 04: - reconstruction

geometric setup G4 hits digits spacing tracking


SCT_GeoModel• prepare new geometric

description of endcap modules– more realistic hybrid shape

– two sensors on each side

– adding subspines

– improved precision of description

– set right materials

now it is integrated in SCT_GeoModel(made by Grant Gorfine)

Contents: - geometric parameters of all SCT components- set materials- properties of sensitive wafers- whole SCT description


SCT_TestBeamDetDescr• use components from

SCT_GeoModel

• description of module and additional blocks position for CTB(all number come from NOVA database)

• geometric setup of various testbeams (May2003, Sep2003, CTB2004)


Installation# setup cmt:# from csh, tcshsource /afs/cern.ch/sw/contrib/CMT/v1r14p20031120/mgr/setup.csh# or from zshsource /afs/cern.ch/sw/contrib/CMT/v1r14p20031120/mgr/setup.sh## use requirements file (if you do not have your favorite):cp -p /afs/cern.ch/user/k/kodys/public/NOVActb_GeoModel/requirements7.5.0 requirements# accomodate requirements to right release and good your paths

# now do the cmt staffcmt configsource setup.csh# orsource setup.sh

cmt co InnerDetector/InDetTestBeam/InDetTestBeamDetDescr/SCT_TestBeamDetDescrcmt co TestRelease

cd TestRelease/TestRelease-00-00-16/cmt# edit requirements

# Now compilation

cmt broadcast cmt configsource setup.csh# orsource setup.shcmt broadcast gmake

cd ../run/# copy txt, mac and xml files (will be in CVS soon)cp /afs/cern.ch/user/c/cescobar/public/athena/last_release/share/* .cp /afs/cern.ch/user/c/cescobar/public/athena/last_release/data/* .cp /afs/cern.ch/user/c/cescobar/public/athena/last_release/G4macros/* .

Only if you want to make some changes in this package

Add all other packages which you want to work with

Start in a new directory

In a new session:cd working_dirsource setup.shcd TestRelease/*/cmtsource setup.sh


First Example // Load NOVA objects into the Detector store#include "$NOVACNVSVCROOT/share/NovaCnvSvc_jobOptions.txt"#include "$NOVACONVERTERSROOT/share/NovaConverters_jobOptions.txt"

//load relevant librariesApplicationMgr.DLLs += { "GeoModelSvc", "SCT_TestBeamDetDescr",

"GeoModelGraphics"};// Setup Geometry Model ServiceApplicationMgr.ExtSvc += { "GeoModelSvc"};

// Setup Geometry Model Tools to be instantiatedGeoModelSvc.Detectors = { "SCT_TBDetectorTool" };

// Choose a setup (1 = May 2003, 2 = Sep 2003, 3 = 2004)GeoModelSvc.SCT_TBDetectorTool.setup=3;// This is to include windows and additional blocks or notGeoModelSvc.SCT_TBDetectorTool.Block=true;// This variable must be set correctly according to// value of GeoModelSvc.SCT_TBDetectorTool.setup// for setup=1 and setup=2//DetDescrCnvSvc.IdDictName="SCT_TB_IDS.xml";// for setup=3DetDescrCnvSvc.IdDictName="SCT_TB2004_IDS.xml";

// Setup example Detector Description AlgorithmApplicationMgr.TopAlg = { "GeoModelDisplay" };

Choose Geometry Tool

(if you want create whole ATLAS SCT load SCT_GeoModel dll and put SCT_DetectorTool)

TestBeamGraphics_jobOptions.txt

Variables Setting

Algorithm for displaying


Geo2G4 conversion

• geometry in the GeoModel has to be translated it to a Geant4 geometry

#include "G4Svc/jobOptions.G4Svc.txt"ApplicationMgr.DLLs += { "Geo2G4"};ApplicationMgr.ExtSvc += { "Geo2G4Svc" };

Graphic output to a vrml file

- coming from G4 macroctb_envelopes.macor ctb_envelope_SCT.mac

• CTB envelopes

SCT_GEO2G4_jobOptions.txt


From simulation …

• G4 simulation– the standard package

G4SimAlg – connection between athena

and Geant4– G4 macros

|__ ctb_Atlas.mac |__ ctb_envelopes.mac |__ ctb_SCT.mac | |__ ctb_SCTgeometry.mac | |__ ctb_SCTsensitivity.mac |__ ctb_visualization.mac | |__ ctb_SCTVis.mac |__ ctb_MagneticField.mac | |__ (ctb_magfield.xml) | |__ (ctb_magfield.dtd) |__ ctb_eventgraph.mac |__ ctb_physicslist.mac

ApplicationMgr.DLLs +={"ParticleGenerator","TruthExamples"};ApplicationMgr.TopAlg = { "ParticleGenerator" , "DumpMC" , "G4SimAlg" };… and many parameters (see documentation)

• Magnetic Field

• Particle Generator

SCT_CTB_simulation_jobOptions.txt


********************************************************************************************************** G4Track Information: Particle = pi+, Track ID = 1, Parent ID = 0*********************************************************************************************************

Step# X(mm) Y(mm) Z(mm) KinE(MeV) dE(MeV) StepLeng TrackLeng NextVolume ProcName 0 0 -9.98 24.9 1.8e+05 0 0 0 MBPS1::MBPS1 initStep 1 110 -9.98 24.9 1.8e+05 0.0225 110 110 MBPS1::MBPS1 hIoni :----- List of 2ndaries - #SpawnInStep= 1(Rest= 0,Along= 0,Post= 1), #SpawnTotal= 1 --------------- : 110 -9.98 24.9 0.00103 e- :----------------------------------------------------------------- EndOf2ndaries Info --------------- 2 264 -9.98 24.9 1.8e+05 0.0308 154 264 SCT::SCT Transportation 3 265 -9.98 24.9 1.8e+05 5.88e-05 0.5 265 Additional block Transportation 4 275 -9.98 24.9 1.8e+05 0.147 10 275 SCT::SCT Transportation 5 278 -9.98 24.9 1.8e+05 0.00108 3.68 278 Additional block Transportation 6 286 -9.98 24.9 1.8e+05 0.303 8 286 SCT::SCT Transportation 7 293 -9.98 24.9 1.8e+05 0.00136 6.3 293 SCT::SCT hIoni :----- List of 2ndaries - #SpawnInStep= 1(Rest= 0,Along= 0,Post= 1), #SpawnTotal= 2 --------------- : 293 -9.98 24.9 0.00378 e- :----------------------------------------------------------------- EndOf2ndaries Info --------------- 8 296 -9.98 24.9 1.8e+05 0.000406 3.07 296 SCT_FwdModule_00 Transportation 9 297 -9.98 24.9 1.8e+05 0.000186 1.25 297 SCT::SCT Transportation 10 301 -9.98 24.9 1.8e+05 0.000752 4.27 301 Sensor_Side#0 Transportation 11 302 -9.98 24.9 1.8e+05 0.0929 0.285 302 SCT_FwdModule_01 Transportation 12 302 -9.98 24.9 1.8e+05 6.85e-05 0.68 302 Sensor_Side#1 Transportation 13 303 -9.98 24.9 1.8e+05 0.0806 0.285 303 SCT::SCT Transportation 14 328 -9.98 24.9 1.8e+05 0.00411 25.8 328 SCT::SCT hIoni :----- List of 2ndaries - #SpawnInStep= 1(Rest= 0,Along= 0,Post= 1), #SpawnTotal= 3 --------------- : 328 -9.98 24.9 0.00104 e- :----------------------------------------------------------------- EndOf2ndaries Info --------------- 15 350 -9.98 24.9 1.8e+05 0.0052 21.6 350 Additional block Transportation 16 358 -9.98 24.9 1.8e+05 0.239 8 358 SCT::SCT Transportation 17 367 -9.98 24.9 1.8e+05 0.00288 9.38 367 SCT_FwdModule_10 Transportation 18 369 -9.98 24.9 1.8e+05 0.00131 1.25 369 SCT::SCT Transportation 19 373 -9.98 24.9 1.8e+05 0.00103 4.27 373 Sensor_Side#0 Transportation 20 373 -9.98 24.9 1.8e+05 0.0858 0.285 373 SCT_FwdModule_11 Transportation 21 374 -9.98 24.9 1.8e+05 5.95e-05 0.68 374 Sensor_Side#1 Transportation 22 374 -9.98 24.9 1.8e+05 0.0842 0.285 374 SCT::SCT Transportation 23 391 -9.98 24.9 1.8e+05 0.0046 17.3 391 SCT::SCT hIoni :----- List of 2ndaries - #SpawnInStep= 1(Rest= 0,Along= 0,Post= 1), #SpawnTotal= 4 --------------- : 391 -9.98 24.9 0.0017 e- :----------------------------------------------------------------- EndOf2ndaries Info --------------- 24 407 -9.98 24.9 1.8e+05 0.00397 15.4 407 SCT::SCT hIoni :----- List of 2ndaries - #SpawnInStep= 1(Rest= 0,Along= 0,Post= 1), #SpawnTotal= 5 --------------- : 407 -9.98 24.9 0.00141 e- :----------------------------------------------------------------- EndOf2ndaries Info --------------- 25 421 -9.98 24.9 1.8e+05 0.00496 14.7 421 Additional block Transportation 26 429 -9.98 24.9 1.8e+05 0.249 8 429 SCT::SCT Transportation 27 439 -9.98 24.9 1.8e+05 0.00158 9.88 439 SCT_FwdModule_20 Transportation 28 441 -9.98 24.9 1.8e+05 0.00116 1.25 441 SCT::SCT Transportation 29 445 -9.98 24.9 1.8e+05 0.0012 4.27 445 Sensor_Side#0 Transportation

magnet

input window

support frame

module

support frame

module


… to reconstruction• digitization & clusterization

• space points

• tracking// Digitization and clusterization stuff// ----------------------------------------------#include "SCT_Digitization/SCT_Digitization_jobOptions.txt"#include "SiClusterizationTool/SCT_ClustersOptions.txt"

// Space points// -----------------------------------------------#include "SiSpacePointFormation/SiTrackerTBSpacePointFinderOptions.txt"NewSiTrackerSpacePointFinder.ProcessPixels = false;NewSiTrackerSpacePointFinder.ProcessSCTs = true;NewSiTrackerSpacePointFinder.ProcessOverlaps = false;// If false, only process opposite waferNewSiTrackerSpacePointFinder.AllClusters = true;

// Tracking// -----------------------------------------------ApplicationMgr.DLLs+= {"SCT_TestBeamAlgs"};CBNT_Athena.NtupleLocID="/FILE1/MUTB/tree";CBNT_Athena.Members += {"TestBeam::SCT_TrackFitter/SCT_TrackFitter"};SCT_TrackFitter.Chi2cut=true;ApplicationMgr.TopAlg += { "CBNT_Athena" };


Some pictures


Simple diagram

NOVADatabase GeoModel

Geant4 Digitisation Clustering SpacepointMaker

Tracking

TransientEventStore

Geo2G4

Hits Digits Clusters Space points Tracks

Reconstruction

Read Algorithm ntuples, histograms, ….


Outlook

• verification• simulation of older testbeams and result

comparisons• CTB 2004 tuning

in future:• follow reality reaction to real CTB

conditions - comparison with real data


Conclusion

• whole sequence seems to be working (in athena 7.5.0, 7.7.0 and 8.0.0)

• standard packages are being used• we know how to run it and make changes

(e.g. how to put results into text file, histograms or ntuples)

• up to now it hasn’t been much stable (due to massive development)

hopefully it will be better

Our status and results are summarized on



Conclusion II.

• We are about to start completing physical tasks and answering physical questions like standard testbeam analysis (noise occupancy, efficiency, fake tracks, etc)

• Practicle guides and examples for newcomers are on our web

• We are able and willing to share our experience with others (feel free to contact us)

Our status and results are summarized on


sct simulation for ctb2004 - status and howtos

Documents