acceleration, a in mass spectrometry, in in situ microanalysis

https://dx.doi.org/10.1351/goldbook.A00051
Vector quantity equal to the derivative of velocity with respect to time. For the acceleration of free fall the symbol g is used.
Source:
PAC, 1996, 68, 957 (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 960