Three dimensional He scattering on a model surface

He atom beam is scattering on a clean model surface. A "window"  - parallel to the surface - has been chosen near the surface (~4 a.u.) at the interaction region. The probability density function of He atom is rendered in the momentum space as the time progresses in the above mentioned "window". Atomic units (a.u.) are used.

Further details can be found in:

"Resolution and transfer width of thermal energy atomic scattering from solid surfaces, G Varga, Applied Surface Science, 144-145 (1999) p. 64-68"
or
"Investigation of thermal energy atomic scattering from solid surfaces using 3D time-dependent Schrödinger equation, G. Varga, Surface Science, vol. 441 (1999) 472-478".