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Forum: Biasing and Scoring
Re: Question stuck track and aborted events (matthew)
Re: None Re: stuck track and aborted events (Tsukasa Aso)
Date: 12 Jan, 2015
From: matthew <matthew>

The world geometry is very large:

//------------------------------ World Volume (cube of vacuum) -------------
  //
  // World volume is a cube of extent 8372 km in all three directions
  G4double world_hx = 8000.0*km; // half-length
  G4double world_hy = 8000.0*km; // half-length
  G4double world_hz = 4186.0*km; // half-length
    
    // apply cut in time of flight (TOF) to logival volume
    G4double maxTime = 30*ms;
    fstepLimit = new G4UserLimits(DBL_MAX,DBL_MAX,maxTime);
    
    // Define world logical volume:
    G4Box* worldBox
    = new G4Box("World_box",world_hx,world_hy,world_hz);
  
    world_log = new G4LogicalVolume(worldBox,vacuum,"world_log",0,0,0);
    world_log->SetUserLimits(fstepLimit);
    
    // Instantiation of a set of visualization attributes with cyan colour
    G4VisAttributes * worldVisAtt = new G4VisAttributes(G4Colour(1,1,1));
    // Set visibility to false
    worldVisAtt->SetVisibility(false);
    // Assignment of the visualization attributes to the logical volume
    world_log->SetVisAttributes(worldVisAtt);
    
Inside the world geometry is a half-sphere of planet earth and two hundred layers of 1km-thick atmosphere. Do you think the size of the geometry is the issue?

matt

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