rtang/ANASEN_analysis
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energy dep comments

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This commit is contained in:
James Szalkie 2026-03-30 15:21:44 -04:00
parent e78b378e05
commit 6e969434da
2 changed files with 35 additions and 23 deletions
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32
Armory/ANASEN_model.C
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@ -26,18 +26,30 @@ void ANASEN_model(int anodeID1 = -1, int anodeID2 = -1, int cathodeID1 = -1, int
TGeoVolume *worldBox = geom->MakeBox("ROOT", Vacuum, worldx, worldy, worldz); TGeoVolume *worldBox = geom->MakeBox("ROOT", Vacuum, worldx, worldy, worldz);
geom->SetTopVolume(worldBox); geom->SetTopVolume(worldBox);
//--- making axis //--- making axis (X=red, Y=green, Z=blue)
TGeoVolume *axisX = geom->MakeTube("axisX", Al, 0, 0.1, 5.); Double_t axisLen = 100.;
axisX->SetLineColor(1); TGeoVolume *axisX = geom->MakeTube("axisX", Al, 0, 0.1, axisLen/2);
worldBox->AddNode(axisX, 1, new TGeoCombiTrans(5, 0, 0., new TGeoRotation("rotA", 90., 90., 0.))); axisX->SetLineColor(kRed);
worldBox->AddNode(axisX, 1, new TGeoCombiTrans(axisLen/2, 0, 0., new TGeoRotation("rotA", 90., 90., 0.)));
TGeoVolume *axisY = geom->MakeTube("axisY", Al, 0, 0.1, 5.); TGeoVolume *axisY = geom->MakeTube("axisY", Al, 0, 0.1, axisLen/2);
axisY->SetLineColor(1); axisY->SetLineColor(kGreen);
worldBox->AddNode(axisY, 1, new TGeoCombiTrans(0, 5, 0., new TGeoRotation("rotB", 0., 90., 0.))); worldBox->AddNode(axisY, 1, new TGeoCombiTrans(0, axisLen/2, 0., new TGeoRotation("rotB", 0., 90., 0.)));
TGeoVolume *axisZ = geom->MakeTube("axisZ", Al, 0, 0.1, 5.); TGeoVolume *axisZ = geom->MakeTube("axisZ", Al, 0, 0.1, axisLen/2);
axisZ->SetLineColor(1); axisZ->SetLineColor(kBlue);
worldBox->AddNode(axisZ, 1, new TGeoTranslation(0, 0, 5)); worldBox->AddNode(axisZ, 1, new TGeoTranslation(0, 0, axisLen/2));
//--- axis labels (draw as TPolyMarker3D + text because TGeo does not label directly)
TPolyMarker3D *marker = new TPolyMarker3D();
marker->SetMarkerSize(1.2);
marker->SetMarkerColor(kRed);
marker->SetPoint(0, axisLen, 0, 0); // X
marker->SetMarkerColor(kGreen);
marker->SetPoint(1, 0, axisLen, 0); // Y
marker->SetMarkerColor(kBlue);
marker->SetPoint(2, 0, 0, axisLen); // Z
marker->Draw();
//--- making ANASEN //--- making ANASEN
const int nWire = 24; const int nWire = 24;

24
Armory/anasenMS.cpp
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@ -247,19 +247,19 @@ int main(int argc, char **argv){
sx3Z = hitPos.Z(); sx3Z = hitPos.Z();
// apply energy loss from vertex to SX3 hit position (for light particle) // apply energy loss from vertex to SX3 hit position (for light particle)
double dl = (hitPos - vertex).Mag() / 10.0; // path length in cm (positions in mm) //double dl = (hitPos - vertex).Mag() / 10.0; // path length in cm (positions in mm)
double EkinLight = Pb.E() - Pb.M(); //double EkinLight = Pb.E() - Pb.M();
double dedxLight = elossLight->Eval(EkinLight); // interpolate dE/dx //double dedxLight = elossLight->Eval(EkinLight); // interpolate dE/dx
double dE_light = dedxLight * dl * density / 1000.0; // adjust for units (example scaling) //double dE_light = dedxLight * dl * density / 1000.0; // adjust for units (example scaling)
if (dE_light < EkinLight) { //if (dE_light < EkinLight) {
Pb.SetE(Pb.E() - dE_light); // Pb.SetE(Pb.E() - dE_light);
// update momentum to conserve direction // // update momentum to conserve direction
double p_new = TMath::Sqrt(Pb.E()*Pb.E() - Pb.M()*Pb.M()); // double p_new = TMath::Sqrt(Pb.E()*Pb.E() - Pb.M()*Pb.M());
TVector3 dir_new = Pb.Vect().Unit() * p_new; // TVector3 dir_new = Pb.Vect().Unit() * p_new;
Pb.SetPxPyPzE(dir_new.X(), dir_new.Y(), dir_new.Z(), Pb.E()); // Pb.SetPxPyPzE(dir_new.X(), dir_new.Y(), dir_new.Z(), Pb.E());
} //}
// update kinetic energy after loss // update kinetic energy after loss
Tb = Pb.E() - Pb.M(); //Tb = Pb.E() - Pb.M();
// reconstruct track from PW readings + SX3 hit // reconstruct track from PW readings + SX3 hit
pw->CalTrack(hitPos, anodeID[0], cathodeID[0], false); pw->CalTrack(hitPos, anodeID[0], cathodeID[0], false);