secondary neutral mass spectrometry

initialism: SNMS
https://doi.org/10.1351/goldbook.12565
Mass spectrometry technique in which neutral species ejected from a sample surface as a result of bombardment by a primary beam of atoms or ions are ionized, most often by photoionization, prior to analysis.
Source:
PAC, 2013, 85, 1515. (Definitions of terms relating to mass spectrometry (IUPAC Recommendations 2013)) on page 1589 [Terms] [Paper]