Photofragmentation of Third-row Hydrides Following Photoexcitation at Deep-core Levels

Authors

D. L. Hansen, University of Nevada, Las VegasFollow
M. E. Arrasate, University of Nevada, Las VegasFollow
J. Cotter, University of Nevada, Reno
G. R. Fisher, Lawrence Berkeley National LaboratoryFollow
Oliver Hemmers, University of Nevada, Las VegasFollow
K. T. Leung, University of WaterlooFollow
Jon C. Levin, University of Tennessee, KnoxvilleFollow
R. Martin, University of Nevada, Las VegasFollow
Paul Neill, University of Nevada, RenoFollow
Rupert C. Perera, Lawrence Berkeley National LaboratoryFollow
I. A. Sellin, University of Tennessee, KnoxvilleFollow
Marc Simon, University of ParisFollow
Y. Uehara, Mitsubishi Electric Corporation
B. Vanderford, University of Nevada, Las Vegas
S. B. Whitfield, University of Wisconsin, Eau ClaireFollow
Dennis W. Lindle, University of Nevada, Las VegasFollow

Document Type

Article

Publication Date

11-1998

Publication Title

Physical Review A

Publisher

American Physical Society

Volume

58

Issue

5

First page number:

3757

Last page number:

3765

Abstract

The relaxation dynamics of HCl, DCl, H₂S, and D₂S following photoexcitation in the vicinities of the Cl and S K-shell thresholds (~2.8 keV for Cl, ~2.5 keV for S) were studied by means of ion time-of-flight mass spectroscopy. In all cases, the onset of pre-edge core-shell photoionization precedes the formation on resonance of a significant amount of neutral hydrogen as well as postcollision-interaction effects above threshold. Examination of the width of the H⁺ peak in spectra taken with the analyzer parallel and perpendicular to the polarization vector of the incident light indicates that on resonance, the photofragmentation asymmetry parameter, β, is approximately two for HCl, and is clearly positive for H₂S.

Keywords

Electronic excitation; Electrons – Emission; Ionization; Nuclear shell theory; Photoionization

Controlled Subject

Electronic excitation; Electrons--Emission; Nuclear shell theory

Disciplines

Atomic, Molecular and Optical Physics | Physics

File Format

pdf

File Size

649 KB

Language

English

Permissions

Copyright American Physical Society. Used with permission.

Rights

IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

Repository Citation

Hansen, D. L., Arrasate, M. E., Cotter, J., Fisher, G. R., Hemmers, O., Leung, K. T., Levin, J. C., Martin, R., Neill, P., Perera, R. C., Sellin, I. A., Simon, M., Uehara, Y., Vanderford, B., Whitfield, S. B., Lindle, D. W. (1998). Photofragmentation of Third-row Hydrides Following Photoexcitation at Deep-core Levels. Physical Review A, 58(5), 3757-3765.
Available at: https://digitalscholarship.unlv.edu/hrc_xray_atomic_molecular/2