He atom
beam is scattering on an irregularly stepped
model surface. A "window" parallel to the
surface has been chosen far from the surface (~10 a.u.) at the detector
region. The probability density function (PDF)
of He atom is rendered as the time progresses in the above mentioned "window".
Atomic units (a.u.) are used.
Animation
description:
Firstly
the He atoms approach to the Rh(311) surface and the "window" --> PDF increases.
Secondly
He atoms pass the "window" and approach to the Rh(311) surface --> PDF
deacreses.
Thirdly
He atoms scatter on the Rh(311) surface and approach to the detector and
the "window" --> PDF increases.
Fourthly
the "window" is the same as the detector --> typical diffraction pattern
at the detector.
Further details can be found in: