beam current

in in situ microanalysis
https://doi.org/10.1351/goldbook.B00621
The number of
primary electrons
reaching the surface of the specimen per unit time expressed as electrical current. Recommended symbol: iB; unit: A; typical range: nA. Recommended measurement technique: Faraday
cage
.
Source:
PAC, 1983, 55, 2023. (Nomenclature, symbols and units recommended for in situ microanalysis (Provisional)) on page 2026 [Terms] [Paper]