Author: Tarek Hussein Harb
Publisher:
ISBN:
Category :
Languages : en
Pages : 392
Book Description
Laser Induced Fluorescence Studies of Molecular Dissociation by Electron Impact
Laser-induced-fluorescence Studies of Fragment Ions
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The dynamics of ion-molecule interactions within a mass selective rf quadrupole ion trap are studied for several ion-molecule systems. Laser induced fluorescence is used as a probe of the internal energy distributions of molecular ions under collision free conditions and under controlled collision conditions. The effects of collisions at near thermal energies (0.3 to 0.5 eV) are easily understood in terms of processes such as charge transfer and other energy transfer mechanisms. The A1PI - X1.sigma. system of CH and CD has been examined under collision free conditions. The ions were produced from methane through electron impact ionization/dissociation. The observed energy distributions reflect the dynamical partitioning of dissociation exothermicity, excepting short lived electronic states. Many new transitions belonging to this electronic system have been observed and a reliable vibrational frequency for the X1.sigma./sup +/ state has been obtained. The radiative lifetimes of CH/sup +/ and CD/sup +/ A1PI(v = 0) states have been measured and a revised oscillator strength for the A-X transition has been derived from this data.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
The dynamics of ion-molecule interactions within a mass selective rf quadrupole ion trap are studied for several ion-molecule systems. Laser induced fluorescence is used as a probe of the internal energy distributions of molecular ions under collision free conditions and under controlled collision conditions. The effects of collisions at near thermal energies (0.3 to 0.5 eV) are easily understood in terms of processes such as charge transfer and other energy transfer mechanisms. The A1PI - X1.sigma. system of CH and CD has been examined under collision free conditions. The ions were produced from methane through electron impact ionization/dissociation. The observed energy distributions reflect the dynamical partitioning of dissociation exothermicity, excepting short lived electronic states. Many new transitions belonging to this electronic system have been observed and a reliable vibrational frequency for the X1.sigma./sup +/ state has been obtained. The radiative lifetimes of CH/sup +/ and CD/sup +/ A1PI(v = 0) states have been measured and a revised oscillator strength for the A-X transition has been derived from this data.
Laser Induced Fluorescence Studies of Water by Electron Impact
The Application of Laser Induced Fluorescence to the Study of Electron Impact Excitation of Atoms and Molecules [microform]
Author: Peter W. Zetner
Publisher: National Library of Canada
ISBN: 9780315207486
Category :
Languages : en
Pages : 462
Book Description
Publisher: National Library of Canada
ISBN: 9780315207486
Category :
Languages : en
Pages : 462
Book Description
Dissociative Excitation of Nitrogen Molecules Via Low Energy Electron Impact
Author: David Lloyd Arthur Rall
Publisher:
ISBN:
Category :
Languages : en
Pages : 354
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 354
Book Description
Laser Induced Fluorescence of Trapped Molecular Ions
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An experimental apparatus for obtaining the optical spectra of molecular ions is described. The experimental technique includes the use of three dimensional ion trapping, laser induced fluorescence, and gated photon counting methods. The ions, which are produced by electron impact, are confined in a radio-frequency quadrupole ion trap of cylindrical design. Because the quadrupole ion trap allows mass selection of the molecular ion desired for study, the analysis of the spectra obtained is greatly simplified. The ion trap also confines the ions to a region easily probed by a laser beam. 18 references.
Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
An experimental apparatus for obtaining the optical spectra of molecular ions is described. The experimental technique includes the use of three dimensional ion trapping, laser induced fluorescence, and gated photon counting methods. The ions, which are produced by electron impact, are confined in a radio-frequency quadrupole ion trap of cylindrical design. Because the quadrupole ion trap allows mass selection of the molecular ion desired for study, the analysis of the spectra obtained is greatly simplified. The ion trap also confines the ions to a region easily probed by a laser beam. 18 references.
Scientific and Technical Aerospace Reports
Publications of the National Institute of Standards and Technology ... Catalog
Author: National Institute of Standards and Technology (U.S.)
Publisher:
ISBN:
Category :
Languages : en
Pages : 398
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 398
Book Description
Laser-induced Fluorescence Studies of Molecular Dynamics
Author: Michael Joseph Gurnick
Publisher:
ISBN:
Category :
Languages : en
Pages : 456
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 456
Book Description
Publications
Author: United States. National Bureau of Standards
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 408
Book Description
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 408
Book Description