Fig. 10

Energy–angular response (azimuthal channel no. 0). a Contour lines of the transmittance for the energy and elevation angle (10, 50, and 90% of the peak are outlined). The results of the proton beam experiment and simulation are represented in magenta and gray, respectively. b Response curve for the elevation angle, c response for the incident energy, and d transmission contour for the relativistic case (the electron beam results and relativistic calculation are shown in cyan and gray, respectively)