title: An (e, 2e + ion) study of low-energy electron-impact ionization and fragmentation of tetrahydrofuran with high mass and energy resolutions.
abstract: We study the low-energy (E0 = 26 eV) electron-impact induced ionization and fragmentation of tetrahydrofuran using a reaction microscope. All three final-state charged particles, i.e., two outgoing electrons and one fragment ion, are detected in triple coincidence such that the momentum vectors and, consequently, the kinetic energies for charged reaction products are determined. The ionic fragments are clearly identified in the experiment with a mass resolution of 1 amu. The fragmentation pathways of tetrahydrofuran are investigated by measuring the ion kinetic energy spectra and the binding energy spectra where an energy resolution of 1.5 eV has been achieved using the recently developed photoemission electron source. Here, we will discuss the fragmentation reactions for the cations C4H8O(+), C4H7O(+), C2H3O(+), C3H6(+), C3H5(+), C3H3(+), CH3O(+), CHO(+), and C2H3(+).
authors.affiliation: Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
authors.forename: Xueguang
authors.initials: X
authors.lastname: Ren
authors.affiliation: Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Pflüger
authors.affiliation: Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
authors.forename: Marvin
authors.initials: M
authors.lastname: Weyland
authors.affiliation: Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
authors.forename: Woon Yoon
authors.initials: WY
authors.lastname: Baek
authors.affiliation: Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
authors.forename: Hans
authors.initials: H
authors.lastname: Rabus
authors.affiliation: Physikalisch-Technische Bundesanstalt, 38116 Braunschweig, Germany.
authors.forename: Joachim
authors.initials: J
authors.lastname: Ullrich
authors.affiliation: Max Planck Institute for Nuclear Physics, 69117 Heidelberg, Germany.
authors.forename: Alexander
authors.initials: A
authors.lastname: Dorn
mesh_terms: D002412:Cations / Q000737:chemistry*; D004583:Electrons; D005663:Furans / Q000737:chemistry*; D013058:Mass Spectrometry
chemical_list: D002412:Cations; D005663:Furans; C018674:tetrahydrofuran