|Message: influence of additional volume to the data||Not Logged In (login)|
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I have made a simulation.
in the simulation a proton passes through magnet and reached to detector.
when I reconstruct it's energy it is same with the initial energy.
environment of the laboratory is rare air 1.29*10^-3.
element ratio is N: O: Ar = 75.47: 23.20: 1.28
there was no problem.
but when I added magnet shape, the energy was splitted into to peak.
this is the magnet shape code.
G4Box* MagSolid = new G4Box("MagSolid", magnetX/2, magnetY/2, magnetZ/2); G4LogicalVolume* MagLV = new G4LogicalVolume(MagSolid, Vacuum, "MagLV"); G4VPhysicalVolume* MagPV = new G4PVPlacement(0, G4ThreeVector(0, 0, -200*cm), "MagPV", MagLV, labPV, false, 0); G4VisAttributes* MagVisAttrib = new G4VisAttributes(G4Colour(1., 0., 0.)); MagLV -> SetVisAttributes(MagVisAttrib);
Vacuum is the laboratory air. and the location is same with magnetic field location.
I heard that this structure is not influence to the particle. because it's environment is same with laboratory.
I want to know the reason why it influence to the particle orbit.
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