H(n=4)/D(n=4) branching ratio in the electron-impact dissociation of HOD

Kenji Furuya, Fumihiro Koba, Teiichiro Ogawa

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Balmer-β emission from the H and the D atoms has been observed by electron impact on the mixtures of H2O and D2O with several mixing ratios at selected incident electron energies over the range of 22-100 eV. Intensity ratios of the emission have been estimated from computer simulation of the emission spectra on each combination of the mixing ratios and the electron energies. Analyzing the intensity ratios, the H(n=4)/D(n=4) branching ratio in the dissociation of pure HOD has been estimated for the first time to be about 1.8 below the second threshold (∼26 eV) of the Balmer-β emission, where it is about 1.5 over 40-100 eV. It has also been found that the ratios of the cross section of the H Balmer emission from H2O to the D Balmer emission from D2O are equal to those of HOD, and the ratios of the D Balmer emission from D2O to that from HOD are constant and about two over 22-100 eV.

Original languageEnglish
Pages (from-to)4979-4984
Number of pages6
JournalJournal of Chemical Physics
Volume107
Issue number13
DOIs
Publication statusPublished - Oct 1 1997

Fingerprint

electron impact
dissociation
Electrons
mixing ratios
electron energy
Atoms
Computer simulation
emission spectra
computerized simulation
thresholds
cross sections
atoms

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

H(n=4)/D(n=4) branching ratio in the electron-impact dissociation of HOD. / Furuya, Kenji; Koba, Fumihiro; Ogawa, Teiichiro.

In: Journal of Chemical Physics, Vol. 107, No. 13, 01.10.1997, p. 4979-4984.

Research output: Contribution to journalArticle

Furuya, Kenji ; Koba, Fumihiro ; Ogawa, Teiichiro. / H(n=4)/D(n=4) branching ratio in the electron-impact dissociation of HOD. In: Journal of Chemical Physics. 1997 ; Vol. 107, No. 13. pp. 4979-4984.
@article{9d2d52c609e94e608f89871d87216cf3,
title = "H(n=4)/D(n=4) branching ratio in the electron-impact dissociation of HOD",
abstract = "The Balmer-β emission from the H and the D atoms has been observed by electron impact on the mixtures of H2O and D2O with several mixing ratios at selected incident electron energies over the range of 22-100 eV. Intensity ratios of the emission have been estimated from computer simulation of the emission spectra on each combination of the mixing ratios and the electron energies. Analyzing the intensity ratios, the H(n=4)/D(n=4) branching ratio in the dissociation of pure HOD has been estimated for the first time to be about 1.8 below the second threshold (∼26 eV) of the Balmer-β emission, where it is about 1.5 over 40-100 eV. It has also been found that the ratios of the cross section of the H Balmer emission from H2O to the D Balmer emission from D2O are equal to those of HOD, and the ratios of the D Balmer emission from D2O to that from HOD are constant and about two over 22-100 eV.",
author = "Kenji Furuya and Fumihiro Koba and Teiichiro Ogawa",
year = "1997",
month = "10",
day = "1",
doi = "10.1063/1.474861",
language = "English",
volume = "107",
pages = "4979--4984",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "13",

}

TY - JOUR

T1 - H(n=4)/D(n=4) branching ratio in the electron-impact dissociation of HOD

AU - Furuya, Kenji

AU - Koba, Fumihiro

AU - Ogawa, Teiichiro

PY - 1997/10/1

Y1 - 1997/10/1

N2 - The Balmer-β emission from the H and the D atoms has been observed by electron impact on the mixtures of H2O and D2O with several mixing ratios at selected incident electron energies over the range of 22-100 eV. Intensity ratios of the emission have been estimated from computer simulation of the emission spectra on each combination of the mixing ratios and the electron energies. Analyzing the intensity ratios, the H(n=4)/D(n=4) branching ratio in the dissociation of pure HOD has been estimated for the first time to be about 1.8 below the second threshold (∼26 eV) of the Balmer-β emission, where it is about 1.5 over 40-100 eV. It has also been found that the ratios of the cross section of the H Balmer emission from H2O to the D Balmer emission from D2O are equal to those of HOD, and the ratios of the D Balmer emission from D2O to that from HOD are constant and about two over 22-100 eV.

AB - The Balmer-β emission from the H and the D atoms has been observed by electron impact on the mixtures of H2O and D2O with several mixing ratios at selected incident electron energies over the range of 22-100 eV. Intensity ratios of the emission have been estimated from computer simulation of the emission spectra on each combination of the mixing ratios and the electron energies. Analyzing the intensity ratios, the H(n=4)/D(n=4) branching ratio in the dissociation of pure HOD has been estimated for the first time to be about 1.8 below the second threshold (∼26 eV) of the Balmer-β emission, where it is about 1.5 over 40-100 eV. It has also been found that the ratios of the cross section of the H Balmer emission from H2O to the D Balmer emission from D2O are equal to those of HOD, and the ratios of the D Balmer emission from D2O to that from HOD are constant and about two over 22-100 eV.

UR - http://www.scopus.com/inward/record.url?scp=3743049492&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=3743049492&partnerID=8YFLogxK

U2 - 10.1063/1.474861

DO - 10.1063/1.474861

M3 - Article

AN - SCOPUS:3743049492

VL - 107

SP - 4979

EP - 4984

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 13

ER -