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Photoelectron spectroscopy of atomic oxygen using the Elettra synchrotron source (Articolo in rivista)

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Photoelectron spectroscopy of atomic oxygen using the Elettra synchrotron source (Articolo in rivista) (literal)

Anno

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Alternative label

Beeching L. J., Dias A.A., Dyke J.M., Morris A., Stranges S., West J.B., Zema N., Zuin L. (2003)
Photoelectron spectroscopy of atomic oxygen using the Elettra synchrotron source
in Molecular physics (Print); TAYLOR & FRANCIS LTD, London (Regno Unito)
(literal)

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Beeching L. J., Dias A.A., Dyke J.M., Morris A., Stranges S., West J.B., Zema N., Zuin L. (literal)

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Univ Southampton, Dept Chem, Southampton SO17 1BJ, Hants, England Univ Nova Lisboa, CEFITEC, Dept Phys, Fac Ciencias & Tecnol, P-2829516 Caparica, Portugal Univ Roma La Sapienza, Dipartimento Chim, I-00185 Rome, Italy INFM, TASC Lab, I-34012 Trieste, Italy CLRC, Daresbury Lab, Warrington WA4 4AD, Cheshire, England CNR, Ist Struttura Mat, Rome, Italy (literal)

Titolo

Photoelectron spectroscopy of atomic oxygen using the Elettra synchrotron source (literal)

Abstract

Atomic oxygen has been studied using angle resolved photoelectron spectroscopy (PES) and constant-ionic-state (CIS) measurements using radiation from the Elettra synchrotron as the photon source. Relative partial photoionization cross-sections and angular distributions for the O+(4S)¨O(3P) and O+(2D)¨O(3P) ionizations have been measured as a function of photon energy from threshold (13.6 eV) to 19.0 eV. Comparison of the results obtained with recent experimental work performed at lower resolution reveals a number of differences and comparison with results of recent calculations shows the need for the inclusion of coupling intermediate between the j-j and L-S limits in future calculations of photoionization cross-sections and angular distributions. This work has demonstrated the feasibility and results to be expected from angle resolved photoelectron spectroscopy (PES) and constant-ionic-state (CIS) measurements on reactive intermediates at Elettra, a third generation synchrotron source, and further studies on small molecular radicals are proposed. (literal)

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