This International Standard describes three methods for measuring the lateral resolution achievable in Auger
electron spectrometers and X-ray photoelectron spectrometers under defined settings. The straight-edge
method is suitable for instruments where the lateral resolution is expected to be larger than 1 µm. The grid
method is suitable if the lateral resolution is expected to be less than 1 µm but more than 20 nm. The goldisland
method is suitable for instruments where the lateral resolution is expected to be smaller than 50 nm.
Annexes A, B and C provide illustrative examples of the measurement of lateral resolution.
2019ISO 18516:2019 Surface chemical analysis — Determination of lateral resolution and sharpness in beam based methods with a range from nanometres to micrometres
2006ISO 18516:2006 Surface chemical analysis - Auger electron spectroscopy and X-ray photoelectron spectroscopy - Determination of lateral resolution