EXP1803

void exp1803_sim_BeamDetEloss(Int_t nEvents = 100) {

        // --------------- Telescope T1 -------------------------------------------

        Double_t T1Dl = 0.5;         // [cm]

        Double_t T1PosZ = 10.;       // [cm]

        Double_t T1D1Thick = 0.002;  // [cm]

        Double_t T1D2Thick = 0.1;    // [cm]

        Double_t T1Side = 6.2;       // [cm]  this parameter should coincide with SD1 side length from /db/QTelescope/QTelescopeParts.xml

        Double_t T1Aperture = 3.1;   // [cm]

        // --------------- Telescope D1 -------------------------------------------

        Double_t D1PosZ = 20.;       // [cm]

        Double_t D1Thick = 0.03;     // [cm]

        // --------------- BeamDet ------------------------------------------------

//        Double_t BeamDetLToF = 1500.;     // [cm]

        Double_t BeamDetLToF = 150.;     // [cm]

        Double_t BeamDetPosZToF = -50;    // [cm]

        Double_t BeamDetLMWPC = 32.;      // [cm]

        Double_t BeamDetPosZMWPC = -8;    // [cm]

        // --------------- Beam start position ------------------------------------

        Double_t beamStartPosition = -1600;  // [cm]

        // --------------- Target -------------------------------------------------

        Double_t targetH2Thickness = 0.4;    // [cm] this parameter should coincide with target H2 thickness in /macro/geo/create_GadastEXP1803_geo.C

        //---------------------Files-----------------------------------------------

        TString outFile= "sim.root";

        TString parFile= "par.root";

        TString workDirPath = gSystem->Getenv("VMCWORKDIR");

        TString paramFileQTelescope = workDirPath

                        + "/db/QTelescope/QTelescopeParts.xml";

        TString paramFileBeamDet = workDirPath

                        + "/db/BeamDet/BeamDetParts.xml";

        TString targetGeoFileName = workDirPath + "/geometry/target.h2.geo.root";

        TString gadastGeoFileName = workDirPath + "/geometry/partOfGadast.v1.geo.root";

        TString ndGeoFileName = workDirPath + "/geometry/ND.geo.root";

        TString magnetGeoFileName = workDirPath + "/geometry/magnet.geo.root";

        // ------------------------------------------------------------------------

        // -----   Timer   --------------------------------------------------------

        TStopwatch timer;

        timer.Start();

        // ------------------------------------------------------------------------

        // -----   Create simulation run   ----------------------------------------

        ERRunSim* run = new ERRunSim();

        /** Select transport engine

         * TGeant3

         * TGeant4

         **/

        run->SetName("TGeant4");              // Transport engine

        run->SetOutputFile(outFile.Data());          // Output file

        // ------------------------------------------------------------------------

        // -----   Runtime database   ---------------------------------------------

        FairRuntimeDb* rtdb = run->GetRuntimeDb();

        // -----   Create media   -------------------------------------------------

        run->SetMaterials("media.geo");       // Materials

        // -----   Create detectors  ----------------------------------------------

        FairModule* cave= new ERCave("CAVE");

        cave->SetGeometryFileName("cave.geo");

        run->AddModule(cave);

        // -----   Create target  -------------------------------------------------

        FairModule* target = new ERTarget("targetH2", kTRUE, 1);

        target->SetGeometryFileName(targetGeoFileName);

        run->AddModule(target);

        ERBeamDetSetup* setupBeamDet = ERBeamDetSetup::Instance();

        setupBeamDet->SetXmlParametersFile(paramFileBeamDet);

        // -----  BeamDet parameters ----------------------------------------------

        setupBeamDet->AddToF("ToF1", BeamDetPosZToF - BeamDetLToF);       //

        setupBeamDet->AddToF("ToF1", BeamDetPosZToF);                     //  BeamDet parts should be added in ascending order

        setupBeamDet->AddMWPC("MWPC1", BeamDetPosZMWPC - BeamDetLMWPC);   //  of Z-coordinate of part.

        setupBeamDet->AddMWPC("MWPC1", BeamDetPosZMWPC);                  //

        // //setupBeamDet->SetSensitiveTarget();

        // ------BeamDet ----------------------------------------------------------

        ERBeamDet* beamdet= new ERBeamDet("ERBeamDet", kTRUE,1);

        run->AddModule(beamdet);

        // -----   Create PrimaryGenerator   --------------------------------------

        FairPrimaryGenerator* primGen = new FairPrimaryGenerator();

        Double_t  kinE_MevPerNucleon = 40.;

        // Int_t     Z = 1, A = 3, Q = 1;

        // TString   ionName = "3H";

        Int_t Z = 2, A = 6, Q = 2;

        TString ionName = "6He";

        ERIonMixGenerator* generator = new ERIonMixGenerator(ionName, Z, A, Q, 1);

        Double32_t kin_energy = kinE_MevPerNucleon * 1e-3 * A; //GeV

        generator->SetKinE(kin_energy);

        generator->SetPSigmaOverP(0);

        Double32_t sigmaTheta = 0.004*TMath::RadToDeg();

        generator->SetThetaSigma(0, 0);

        // generator->SetThetaRange(0., 5.);

        // generator->SetPhiRange(0, 360);

        generator->SetBoxXYZ(0, 0, 0, 0, beamStartPosition);

//        generator->SpreadingOnTarget();

        primGen->AddGenerator(generator);

        run->SetGenerator(primGen);

        //-------Set visualisation flag to true------------------------------------

        run->SetStoreTraj(kTRUE);

        //-------Set LOG verbosity  -----------------------------------------------

        FairLogger::GetLogger()->SetLogVerbosityLevel("LOW");

        // -----   Initialize simulation run   ------------------------------------

        run->Init();

        Int_t nSteps = -15000;

        //gMC->SetMaxNStep(nSteps);

        // -----   Runtime database   ---------------------------------------------

        Bool_t kParameterMerged = kTRUE;

        FairParRootFileIo* parOut = new FairParRootFileIo(kParameterMerged);

        parOut->open(parFile.Data());

        rtdb->setOutput(parOut);

        rtdb->saveOutput();

        rtdb->print();

        // -----   Run simulation  ------------------------------------------------

        run->Run(nEvents);

        // -----   Finish   -------------------------------------------------------

        timer.Stop();

        Double_t rtime = timer.RealTime();

        Double_t ctime = timer.CpuTime();

        std::cout << std::endl << std::endl;

        std::cout << "Macro finished succesfully." << std::endl;

        std::cout << "Output file is sim.root" << std::endl;

        std::cout << "Parameter file is par.root" << std::endl;

        std::cout << "Real time " << rtime << " s, CPU time " << ctime

                        << "s" << std::endl << std::endl;

}