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Fig. 4
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Emerging intensities from searchlight beam tests. Left: regular grid with short characteristics and linear interpolation. Right: irregular grid. The box we used had a size of 1 × 1 × 1 m3 and 5l3 grid points. The beam was circular, with a radius of 0.2 m and inclination of θ = 20° (µ ≈ 0.94).
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