$L$-shell photoionization of Ar${}^{+}$ to Ar${}^{3+}$ ions

$L$ -shell photoionization of Ar $^{+}$ to Ar $^{3 +}$ ions

C. Blancard, Ph. Cossé, G. Faussurier, J.-M. Bizau, D. Cubaynes, N. El Hassan, S. Guilbaud, M. M. Al Shorman, E. Robert, X.-J. Liu, C. Nicolas, and C. Miron

Phys. Rev. A 85, 043408 – Published 11 April 2012

Abstract

Absolute photoionization cross sections of Ar $^{+}$ , Ar $^{2 +}$ , and Ar $^{3 +}$ ions have been measured in the 250–280 eV photon energy range. These results are compared to theoretical cross sections extracted from two new calculations we performed. They reproduce well the general behavior of the experimental spectra and the magnitude of the direct photoionization cross sections. However, the oscillator strength of the resonant structure in the spectra, dominated by $2 p \to 3 d$ transitions, is overestimated up to 80 $%$ by our calculations.

Received 8 March 2012

DOI:https://doi.org/10.1103/PhysRevA.85.043408

Authors & Affiliations

C. Blancard^1,2, Ph. Cossé¹, and G. Faussurier¹

¹CEA, DAM, DIF, F-91297 Arpajon, France
²Observatoire de Paris, LUTH, CNRS UMR 8102, 5 place Jules Janssen, F-92195 Meudon, France

J.-M. Bizau^1,2,*, D. Cubaynes^1,2, N. El Hassan^1,†, S. Guilbaud¹, and M. M. Al Shorman^1,2

¹Institut des Sciences Moléculaires d’Orsay (ISMO), CNRS UMR 8214, Université Paris-Sud, Bâtiment 350, F-91405 Orsay cedex, France
²Synchrotron SOLEIL, L’Orme des Merisiers, Saint Aubin, Boîte Postale 48, F-91192 Gif-sur-Yvette cedex, France

E. Robert, X.-J. Liu, C. Nicolas, and C. Miron

Synchrotron SOLEIL, L’Orme des Merisiers, Saint Aubin, Boîte Postale 48, F-91192 Gif-sur-Yvette cedex, France

^*jean-marc.bizau@u-psud.fr
^†Present address: Laboratoire de Physique Pharmaceutique, CNRS UMR 8612, Université Paris-Sud, Faculté de Pharmacie, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry, France.

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Vol. 85, Iss. 4 — April 2012

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