|Message: Understanding G4PSFlatSurfFlux output||Not Logged In (login)|
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Hello, I'm having a tough time understanding the output of my G4PSFlatSurfaceFlux scorer. The current state of my simulation is fairly simple: a single proton is transported through an absorber and a detector. The only process envoked is AddTransportation(); 20 events are simulated; the particle impinges the detector surface at an angle of 90 degrees and the weight of the proton is 1. The scorer G4PSTrackCounter outputs a total of 20 tracks. Now, according to the formula in the Book for Application Developers on page 122, the FlatSurfaceFlux should be Flux = 20*(W/cos(t)/A) So, the weight is 1 and cos(0deg) = 1. Therefore the flux should be: Flux = 20*(1/1/A) The flux output by my simulation is 5.555555555555553e-05 The -Z surface area of my detector is 30cm X 30cm = 90000*mm2 By multiplying the flux with the surface area I expect to get the number of tracks. This calculation does not add up though. The question is: WHY?
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