ionization cross-section

https://doi.org/10.1351/goldbook.I03194
A measure of the @[email protected] that a given @[email protected] process will occur when an atom or molecule interacts with an electron or a photon.
Source:
PAC, 1991, 63, 1541. (Recommendations for nomenclature and symbolism for mass spectroscopy (including an appendix of terms used in vacuum technology). (Recommendations 1991)) on page 1548 [Terms] [Paper]