added uncertainties in calculating th etrack
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Ryan Tang
parent
d710df842d
commit
a668f64ab7
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@ -21,6 +21,13 @@ public:
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ANASEN();
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~ANASEN();
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void SetUncertainties(double sx3W, double sx3L, double anode, double cathode){
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sigmaA = anode;
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sigmaC = cathode;
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sigmaW = sx3W;
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sigmaL = sx3L;
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}
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void DrawTrack(TVector3 pos, TVector3 direction, bool drawEstimatedTrack = false);
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void DrawDeducedTrack(TVector3 sx3Pos, int anodeID, int cathodeID);
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void DrawAnasen(int anodeID1 = -1,
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@ -40,6 +47,9 @@ private:
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PW * pw;
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SX3 * sx3;
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double sigmaA, sigmaC; // pw
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double sigmaW, sigmaL; // sx3
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const float qqqR1 = 50;
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const float qqqR2 = 100;
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const float qqqZPos = 23 + 75 + 30;
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@ -113,11 +123,9 @@ inline void ANASEN::Construct3DModel(int anodeID1, int anodeID2, int cathodeID1,
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TGeoVolume *axisX = geom->MakeTube("axisX", Al, 0, 0.1, 5.);
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axisX->SetLineColor(1);
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worldBox->AddNode(axisX, 1, new TGeoCombiTrans(5, 0, 0., new TGeoRotation("rotA", 90., 90., 0.)));
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TGeoVolume *axisY = geom->MakeTube("axisY", Al, 0, 0.1, 5.);
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axisY->SetLineColor(1);
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worldBox->AddNode(axisY, 1, new TGeoCombiTrans(0, 5, 0., new TGeoRotation("rotB", 0., 90., 0.)));
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TGeoVolume *axisZ = geom->MakeTube("axisZ", Al, 0, 0.1, 5.);
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axisZ->SetLineColor(1);
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worldBox->AddNode(axisZ, 1, new TGeoTranslation(0, 0, 5));
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@ -238,7 +246,8 @@ inline void ANASEN::DrawTrack(TVector3 pos, TVector3 direction, bool drawEstima
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worldBox->AddNode(startPos, 3, new TGeoCombiTrans( pos.X(), pos.Y(), pos.Z(), new TGeoRotation("rotA", 0, 0, 0.)));
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if( sx3->GetID() >= 0 ){
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TVector3 hitPos = sx3->GetHitPos();
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//TVector3 hitPos = sx3->GetHitPos();
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TVector3 hitPos = sx3->GetHitPosWithSigma(sigmaW, sigmaL);
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TGeoVolume * hit = geom->MakeSphere("hitpos", 0, 0, 3);
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hit->SetLineColor(kRed);
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@ -259,7 +268,7 @@ inline void ANASEN::DrawTrack(TVector3 pos, TVector3 direction, bool drawEstima
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{//===== complicated
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PWHitInfo hitInfo = pw->GetHitInfo();
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pw->CalTrack2(hitPos, hitInfo, true);
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pw->CalTrack2(hitPos, hitInfo, sigmaA, sigmaC, true);
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double thetaDeduce = pw->GetTrackTheta() * TMath::RadToDeg();
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double phiDeduce = pw->GetTrackPhi() * TMath::RadToDeg();
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@ -27,7 +27,7 @@ struct PWHitInfo{
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//!########################################################
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class PW{ // proportional wire
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public:
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PW(){ ClearHitInfo(); };
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PW(){ ClearHitInfo();};
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~PW(){};
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PWHitInfo GetHitInfo() const {return hitInfo;}
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@ -62,7 +62,7 @@ public:
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void ConstructGeo();
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void FindWireID(TVector3 pos, TVector3 direction, bool verbose = false);
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void CalTrack(TVector3 sx3Pos, int anodeID, int cathodeID, bool verbose = false);
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void CalTrack2(TVector3 sx3Pos, PWHitInfo hitInfo, bool verbose = false);
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void CalTrack2(TVector3 sx3Pos, PWHitInfo hitInfo, double sigmaA = 0, double sigmaC = 0, bool verbose = false);
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void Print(){
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printf(" The nearest | Anode: %2d(%5.2f) Cathode: %2d(%5.2f)\n", hitInfo.nearestWire.first,
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@ -232,20 +232,21 @@ inline void PW::CalTrack(TVector3 sx3Pos, int anodeID, int cathodeID, bool verbo
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}
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inline void PW::CalTrack2(TVector3 sx3Pos, PWHitInfo hitInfo, bool verbose){
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inline void PW::CalTrack2(TVector3 sx3Pos, PWHitInfo hitInfo, double sigmaA, double sigmaC, bool verbose){
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trackPos = sx3Pos;
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// fraction between the nearest wire and and the 2nd nearest wire by distance
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double totDistA = hitInfo.nearestDist.first + hitInfo.nextNearestDist.first;
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double fracA = hitInfo.nearestDist.first / totDistA;
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double p1 = TMath::Abs(hitInfo.nearestDist.first + gRandom->Gaus(0, sigmaA));
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double p2 = TMath::Abs(hitInfo.nextNearestDist.first + gRandom->Gaus(0, sigmaA));
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double fracA = p1 / (p1 + p2);
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short anodeID1 = hitInfo.nearestWire.first;
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short anodeID2 = hitInfo.nextNearestWire.first;
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TVector3 shiftA1 = (An[anodeID2].first - An[anodeID1].first) * fracA;
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TVector3 shiftA2 = (An[anodeID2].second - An[anodeID1].second) * fracA;
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double totDistC = hitInfo.nearestDist.second + hitInfo.nextNearestDist.second;
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double fracC = hitInfo.nearestDist.second / totDistC;
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double q1 = TMath::Abs(hitInfo.nearestDist.second + gRandom->Gaus(0, sigmaC));
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double q2 = TMath::Abs(hitInfo.nextNearestDist.second + gRandom->Gaus(0, sigmaC));
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double fracC = q1 / (q1 + q2);
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short cathodeID1 = hitInfo.nearestWire.second;
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short cathodeID2 = hitInfo.nextNearestWire.second;
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TVector3 shiftC1 = (Ca[cathodeID2].first - Ca[cathodeID1].first) * fracC;
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@ -16,6 +16,7 @@ public:
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short GetChBk() const {return chBk;}
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TVector3 GetHitPos() const {return hitPos;}
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TVector3 GetHitPosWithSigma(double sigmaY_mm, double sigmaZ_mm);
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double GetZFrac() const {return zFrac;} // range from -0.5 to 0.5
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@ -187,6 +188,23 @@ inline void SX3::FindSX3Pos(TVector3 pos, TVector3 direction, bool verbose){
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if( verbose) Print();
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}
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inline TVector3 SX3::GetHitPosWithSigma(double sigmaY_mm, double sigmaZ_mm){
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double phi = SNorml[id].Phi();
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TVector3 haha = hitPos;
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haha.RotateZ(-phi);
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double y = haha.Y() + gRandom->Gaus(0, sigmaY_mm);
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double z = haha.Z() + gRandom->Gaus(0, sigmaZ_mm);
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haha.SetY(y);
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haha.SetZ(z);
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haha.RotateZ(phi);
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return haha;
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}
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inline void SX3::CalSX3Pos(unsigned short ID, unsigned short chUp, unsigned short chDown, unsigned short chBack, float eUp, float eDown){
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@ -35,9 +35,14 @@ int main(int argc, char **argv){
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std::vector<float> ExAList = {0};
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std::vector<float> ExList = {0, 1, 2};
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double vertexXRange[2] = { 0, 0};
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double vertexYRange[2] = { 0, 0};
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double vertexZRange[2] = { 0, 0};
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double vertexXRange[2] = { -10, 10}; // mm
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double vertexYRange[2] = { -10, 10};
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double vertexZRange[2] = { -70, 70};
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double sigmaSX3_W = 10; // mm
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double sigmaSX3_L = 0; // mm
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double sigmaPW_A = 0; // from 0 to 1.
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double sigmaPW_C = 0; // from 0 to 1.
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//###################################################
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transfer.CalReactionConstant();
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@ -183,15 +188,19 @@ int main(int argc, char **argv){
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sx3Bk = sx3->GetChBk();
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sx3ZFrac = sx3->GetZFrac();
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sx3X = sx3->GetHitPos().X();
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sx3Y = sx3->GetHitPos().Y();
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sx3Z = sx3->GetHitPos().Z();
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//Introduce uncertaity
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// TVector3 hitPos = sx3->GetHitPos();
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TVector3 hitPos = sx3->GetHitPosWithSigma(sigmaSX3_W, sigmaSX3_L);
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sx3X = hitPos.X();
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sx3Y = hitPos.Y();
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sx3Z = hitPos.Z();
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pw->CalTrack(sx3->GetHitPos(), anodeID[0], cathodeID[0], false);
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pw->CalTrack(hitPos, anodeID[0], cathodeID[0], false);
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reTheta = pw->GetTrackTheta() * TMath::RadToDeg();
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rePhi = pw->GetTrackPhi() * TMath::RadToDeg();
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pw->CalTrack2(sx3->GetHitPos(), hitInfo, false);
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pw->CalTrack2(hitPos, hitInfo, sigmaPW_A, sigmaPW_C, false);
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reTheta1 = pw->GetTrackTheta() * TMath::RadToDeg();
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rePhi1 = pw->GetTrackPhi() * TMath::RadToDeg();
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17
script.C
17
script.C
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@ -246,8 +246,15 @@ void script(TString fileName = "", int maxEvent = -1){
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TCanvas * c2 = new TCanvas("c2", "ANASEN Simulation", 800, 800);
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c2->cd();
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ANASEN * haha = new ANASEN();
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haha->SetUncertainties(10, 10, 1, 1);
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PW * pw = haha->GetPW();
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SX3 * sx3 = haha->GetSX3();
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// haha->DrawAnasen(0, 1, 0, 1, -1, false);
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gRandom->SetSeed(0);
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@ -273,13 +280,9 @@ void script(TString fileName = "", int maxEvent = -1){
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haha->DrawTrack(pos, dir, true);
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PW pc;
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pc.ConstructGeo();
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pc.FindWireID(pos, dir, true);
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SX3 sx3;
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sx3.ConstructGeo();
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sx3.FindSX3Pos(pos, dir, true);
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pw->FindWireID(pos, dir, true);
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sx3->FindSX3Pos(pos, dir, true);
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// haha->CalTrack(sx3.hitPos, wireID.first, wireID.second, true);
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