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I want to model a parabolic mirror to focus optical photons. I thought the way to go is to subtract a paraboloid from a cylinder see the code snipet below. Looking at the result with the OIX viewer I can only see the tube not the subtracted solid. Is there an example somewhere how to construct and visualize a parabolic mirror?
G4Paraboloid* parabolic_mirror = new G4Paraboloid("mirrorneg", 10*mm, innerRadiusOfTheTube, outerRadiusOfTheTube);
G4Tubs* mirror_tube = new G4Tubs("mirrorbase", innerRadiusOfTheTube, outerRadiusOfTheTube, 10 * mm, startAngleOfTheTube, spanningAngleOfTheTube); G4SubtractionSolid* mirror_sol = new G4SubtractionSolid ("mirror", mirror_tube, parabolic_mirror);
G4LogicalVolume* mirror_log = new G4LogicalVolume(mirror_sol, Quartz, "mirror_log");
place_sidet.rotateX(phi); place_sidet.rotateZ(phi); G4VPhysicalVolume* mirror_phys = new G4PVPlacement(G4Transform3D(rm, place_mirror), mirror_log, "pMirror", expHall_log, false, 0);
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