extraction field

https://doi.org/10.1351/goldbook.09398
In secondary-ion mass spectrometry, electric field above a sample, operational during ion emission from the sample.
Note: The extraction field can be pulsed or constant, depending on the type of instrument.
Source:
PAC, 2020, 92, 1781. (Glossary of methods and terms used in surface chemical analysis (IUPAC Recommendations 2020)) on page 1838 [Terms] [Paper]