Comparison of single scattered (dashed lines) and multiple scattered (solid lines) solutions computed with the angle-dependent PRD. A 1D cut-off assumption is used with x_c = 3. The model parameters are (a,   ϵ,   r,   Γ_E/Γ_R) = (10^-3,   10^-3,   0,   0) and the magnetic field parameters are (Γ,   θ_B,   χ_B) = (1,   30°,   0°). The line of sight is represented by μ = 0.11 and χ = 0°. Panel a) corresponds to T = 1, panel b) to T = 100, and panel c) to T = 10⁴.