scanning proton microscopy

initialism: SPM
https://doi.org/10.1351/goldbook.08761
Measurement method of X-ray fluorescence analysis in which protons are focused and collimated to form a micro beam to obtain an image of a surface.
Source:
PAC, 2021, 93, 69. (Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)) on page 101 [Terms] [Paper]