The optical system of the H.E.S.S. imaging atmospheric Cherenkov

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optimum
test measurements
algorithm
Frequency of occurence (norm.)
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0.03
0.02
0.01
0
0
0.01
0.02
0.03 0.04 0.05
Deviation [mrad]
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0.07
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10
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30 40 50 60 70
Elevation Θ [deg]
80
90
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y [deg]
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x [deg]
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Vertical distance to dish center [m]
6
at 29° with
respect to 65°
4
2
0
-2
-4
-6
0.5 mrad
-6
-4
-2
0
2
4
6
Horizontal distance to dish center [m]
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FEM/data
σ horizontal
σ vertical
Mirror facet rms deflection [mrad]
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
20
30
40
50
60
70
Elevation Θ [deg]
80
90
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The optical system of the H.E.S.S. imaging atmospheric Cherenkov

Transcription

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