Cross section for the production of N2
+ (X2Σg
+) ions by electron impact on N2

N. Abramzon; R. B. Siegel; K. Becker

doi:10.1016/S1387-3806(99)00018-4

Cross section for the production of N₂ ⁺ (X²Σ_g ⁺) ions by electron impact on N₂

N. Abramzon, R. B. Siegel, K. Becker

Research output: Contribution to journal › Article › peer-review

Abstract

A combination of electron scattering and laser-induced fluorescence (LIF) techniques has been employed in the direct experimental determination of the N₂⁺ (X²Σ_g⁺) ionizati on cross section as a function of electron energy from threshold to 200 eV. Electron impact on N₂ produces N₂⁺ ground-state ions that are detected by pumping the X ²Σ_g⁺ → B ²Σ_u⁺ + (0,0) vibrational transition at 391 nm with a tunable dye laser and detecting the subsequent LIF of the B ²Σ_u⁺ → X ²Σ_g⁺ (0,1) vibrational transition at 428 nm. LlF spectra obtained at different electron energies yield the relative N₂⁺(X) cross section which is put on an absolute scale by normalization to the absolute cross section value of Doering and Yang [J. Geophys. Res. 102 (1996) 9683] obtained from electron-electron coincidence(e,2e) experiments at 100 eV.

Original language	English (US)
Pages (from-to)	147-153
Number of pages	7
Journal	International Journal of Mass Spectrometry
Volume	188
Issue number	3
DOIs	https://doi.org/10.1016/S1387-3806(99)00018-4
State	Published - 1999

Keywords

Cross sections
Electron-impact ionization
Laser-induced fluorescence

ASJC Scopus subject areas

Instrumentation
Condensed Matter Physics
Spectroscopy
Physical and Theoretical Chemistry

Access to Document

10.1016/S1387-3806(99)00018-4

Cite this

@article{612bb8be9de444b884d868a1388f26ed,

title = "Cross section for the production of N2 + (X2Σg +) ions by electron impact on N2",

abstract = "A combination of electron scattering and laser-induced fluorescence (LIF) techniques has been employed in the direct experimental determination of the N2+ (X2Σg+) ionizati on cross section as a function of electron energy from threshold to 200 eV. Electron impact on N2 produces N2+ ground-state ions that are detected by pumping the X 2Σg+ → B 2Σu+ + (0,0) vibrational transition at 391 nm with a tunable dye laser and detecting the subsequent LIF of the B 2Σu+ → X 2Σg+ (0,1) vibrational transition at 428 nm. LlF spectra obtained at different electron energies yield the relative N2+(X) cross section which is put on an absolute scale by normalization to the absolute cross section value of Doering and Yang [J. Geophys. Res. 102 (1996) 9683] obtained from electron-electron coincidence(e,2e) experiments at 100 eV.",

keywords = "Cross sections, Electron-impact ionization, Laser-induced fluorescence",

author = "N. Abramzon and Siegel, {R. B.} and K. Becker",

note = "Funding Information: The authors wish to acknowledge financial support of this work from the U.S. National Science Foundation and from the U.S. National Aeronautics and Space Administration. They also acknowledge helpful discussions with many colleagues during the course of this work, particularly with J.W. McConkey, V. Tarnovsky, and P. Kurunczi. ",

year = "1999",

doi = "10.1016/S1387-3806(99)00018-4",

language = "English (US)",

volume = "188",

pages = "147--153",

journal = "International Journal of Mass Spectrometry and Ion Processes",

issn = "1387-3806",

publisher = "Elsevier",

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T1 - Cross section for the production of N2 + (X2Σg +) ions by electron impact on N2

AU - Abramzon, N.

AU - Siegel, R. B.

AU - Becker, K.

N1 - Funding Information: The authors wish to acknowledge financial support of this work from the U.S. National Science Foundation and from the U.S. National Aeronautics and Space Administration. They also acknowledge helpful discussions with many colleagues during the course of this work, particularly with J.W. McConkey, V. Tarnovsky, and P. Kurunczi.

PY - 1999

Y1 - 1999

N2 - A combination of electron scattering and laser-induced fluorescence (LIF) techniques has been employed in the direct experimental determination of the N2+ (X2Σg+) ionizati on cross section as a function of electron energy from threshold to 200 eV. Electron impact on N2 produces N2+ ground-state ions that are detected by pumping the X 2Σg+ → B 2Σu+ + (0,0) vibrational transition at 391 nm with a tunable dye laser and detecting the subsequent LIF of the B 2Σu+ → X 2Σg+ (0,1) vibrational transition at 428 nm. LlF spectra obtained at different electron energies yield the relative N2+(X) cross section which is put on an absolute scale by normalization to the absolute cross section value of Doering and Yang [J. Geophys. Res. 102 (1996) 9683] obtained from electron-electron coincidence(e,2e) experiments at 100 eV.

AB - A combination of electron scattering and laser-induced fluorescence (LIF) techniques has been employed in the direct experimental determination of the N2+ (X2Σg+) ionizati on cross section as a function of electron energy from threshold to 200 eV. Electron impact on N2 produces N2+ ground-state ions that are detected by pumping the X 2Σg+ → B 2Σu+ + (0,0) vibrational transition at 391 nm with a tunable dye laser and detecting the subsequent LIF of the B 2Σu+ → X 2Σg+ (0,1) vibrational transition at 428 nm. LlF spectra obtained at different electron energies yield the relative N2+(X) cross section which is put on an absolute scale by normalization to the absolute cross section value of Doering and Yang [J. Geophys. Res. 102 (1996) 9683] obtained from electron-electron coincidence(e,2e) experiments at 100 eV.

KW - Cross sections

KW - Electron-impact ionization

KW - Laser-induced fluorescence

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