-4.0Å<———-0———–>+4.0Å

Resolution: less than 0.1Å　(0.1Å以下の空間分解能)

3keV-4He0 beams —> MgO(111) surfaces

The picture of MgO(100) surfaces using low energy atom scattering spectroscopy.
2keV-He⁰ –> MgO(100)