Figure 4
Measured dependence of the PMT output current count Y as a function of the emission angle θ, with and without a target (background). The experiment was performed using MIRRORCLE-6X at IP = 40 mA, T ≅ 100 ns and R = 200 Hz. The TR target was a 2.5 mm-wide Al foil stripe of thickness d = 385 nm. The PMT was operated at 1 kV. |