The sputtering yields of solids under ion bombardment are highly sensitive to the roughness their surfaces. Understanding how is exactly affected by different surface morphologies relevant especially for plasma-wall interaction in fusion reactors and space weathering planetary We present an analytical model that allows calculate random gaussian rough surfaces arbitrary angles incidence, taking ...

Shape-from-shading and shape-from-texture methods have the serious drawback that they are applicable only to smooth surfaces, while real surfaces are often rough and crumpled. TO extend such methods to real surfaces we must have a model that also applies to rough surfaces. The fractal surface model [Pentland 831 provides a formalism that is competent to describe such natural 3-D surfaces and, i...