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DEVA Manual 5 Profiles taken from the beam camera for a number of slit settings: Horizontal profile (a.u.) Slits: 4 8 16 24 32 40 60 edge of scintillator in camera 0 2 4 6 8 10 Width (cm) The beam pictures can be fitted to a Gaussian profile. Parameters are shown here: Spot Size (gaussian σ in cm) 2.0 1.5 width height 1.0 0.5 0.0 0 10 20 30 40 50 60 Slits 5000 4500 Intensity at centre (a.u.) 4000 3500 3000 2500 2000 1500 1000 500 0 0 10 20 30 Slits 40 50 60
