Open AccessElectron impact dissociative ionization of methane: Formation of protons
Author(s) -
Shenyue Xu,
Xiaofeng Ma,
Xueguang Ren,
Arne Senftleben,
Thomas Pflüger,
Alexander Dorn,
J. Ullrich
Publication year - 2012
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/388/5/052011
Subject(s) - electron ionization , methane , ionization , dissociative , electron , atomic physics , chemistry , materials science , physics , ion , nuclear physics , psychology , organic chemistry , psychiatry
Production of protons from dissociative ionization of methane by electron impact is investigated using the reaction microscope. By the triple coincidence measurement of all the three charged particles in the final state, we found that the (2a1)−1(npt2)1, (2a1)−1, (1t2)−2(3a1)1 and (2a1)−2(3a1)1 states of the intermediate CH4+ give major contributions to the formation of protons, and each state dissociates in a different mechanism