gMC->Gsvolu(volFlange,"TUBE",idAlu1,tpar,3); // Al
// changed by ivana
//gMC->Gspos(volFlange,1,"ALIC",0.,0.,zpos,0,"MANY");
- iChamber->GetGeometry()->AddEnvelope(volFlange, false);
+ iChamber->GetGeometry()->AddEnvelope(volFlange, false, "MANY");
// scaling factor
Float_t zRatio = zpos / zpos1;