Studies of electron-impact dissociative excitation and ionization using the crossed electron-ion beams technique

Absolute cross sections for heavy ion fragment production due to electron-impact dissociation of XH2+ (X B, C, N, O, F), N2D+ and O3+ have been investigated with the crossed electron-ion beams technique in the energy range 3 – 100 eV. This energy regime covers the dissociative excitation and ionizat...

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Published inJournal of physics. Conference series Vol. 300; no. 1; pp. 12003 - 7
Main Authors Fogle, M, Bahati, E M, Bannister, M E, Deng, S H M, Vane, C R, Thomas, R D, Zhaunerchyk, V
Format Journal Article Conference Proceeding
LanguageEnglish
Published Bristol IOP Publishing 01.01.2011
Subjects
Absorption cross sections
Beams (radiation)
Channels
Cross sections
Cross sections (physics)
Electron beams
Electron impact
Electrons
Energy of dissociation
Excitation
Heavy ions
Ion beams
Ionization
Physics
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Summary:Absolute cross sections for heavy ion fragment production due to electron-impact dissociation of XH2+ (X B, C, N, O, F), N2D+ and O3+ have been investigated with the crossed electron-ion beams technique in the energy range 3 – 100 eV. This energy regime covers the dissociative excitation and ionization processes. Two and three-body dissociation channels are observed in these systems and marked resonant-like structure is also observed in the dissociative excitation channels of some systems. It is unclear if direct excitation or resonant capture processes lead to these enhanced dissociative excitation cross sections.
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USDOE
AC05-00OR22725
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/300/1/012003