beam current

in in situ microanalysis
https://doi.org/10.1351/goldbook.B00621
The number of @P04829@ reaching the surface of the specimen per unit time expressed as electrical current. Recommended symbol: \(i_{\text{B}}\); unit: \(\text{A}\); typical range: \(\mathrm{nA}\). Recommended measurement technique: Faraday @C00769@.
Source:
PAC, 1983, 55, 2023. (Nomenclature, symbols and units recommended for in situ microanalysis (Provisional)) on page 2026 [Terms] [Paper]