These examples illustrate that, even in very simple inspection configurations, the new ray-based model is able to
provide an improvement compared to the plane-wave approximation. Its benefits were also observed in other cases
not presented here, including cases where the ultrasonic beams are distorted or split due to part geometry, or when
the response of the defect is very sensitive to wave direction (crack tip diffraction, for example). In general, the
ability of the ray-based method to take into account several directions and several times-of-flight makes it more
accurate than the plane-wave approximation. In a number of cases, it approaches the accuracy of the finite element
method with a significantly lower computational cost.