Premium
Partial Cross Sections for Dissoziative Ionization of Fluorinated Compounds by Electron Impact
Author(s) -
Poll H. U.,
Meichsner J.
Publication year - 1987
Publication title -
beiträge aus der plasmaphysik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.531
H-Index - 47
eISSN - 1521-3986
pISSN - 0005-8025
DOI - 10.1002/ctpp.19870270505
Subject(s) - electron ionization , ionization , ion , kinetic energy , mass spectrometry , chemistry , ionization energy , electron , atomic physics , analytical chemistry (journal) , chemical ionization , physics , organic chemistry , nuclear physics , chromatography , quantum mechanics
Ionization cross sections of fragment ions of CF 4 , C 2 F 6 , C 3 F 8 , n ‐C 4 F 10 , C 2 F 4 , 1‐C 4 F 8 , SiF 4 , COF 2 . CHF 3 were determined in dependence on electron energy up to 125 eV by means of a quadrupol mass spectrometer. Tails at the low energy part of the characteristics are interpreted as a result of kinetic energy depending on molecular weight of fragments. Parent ions are only detected for chemically unsaturated compounds showing characteristic curves of ionization efficiency. Total cross sections obey the additive rule.