raster

https://doi.org/10.1351/goldbook.09274
Two-dimensional pattern generated by the deflection of a primary beam.
Note: Commonly used rasters cover square or rectangular areas.
Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1811 [Terms] [Paper]