Photoionization cross section of Xe+ ion in the pure 5p(5) P-2(3/2) ground level

Roland Thissen (1) , J. M. Bizau (2) , C. Blancard (3) , Marcello Coreno (4) , C. Dehon (5) , P. Francheschi (6) , A. Giuliani (7, 8) , J. Lemaire (5) , C. Nicolas (7)

1 LPG - Laboratoire de Planétologie de Grenoble
2 LIXAM - Laboratoire d'Interaction des Rayons X avec la Matière (LIXAM)
3 DPTA - Département de Physique Théorique et Appliquée
4 IMIP-CNR - Istituto di Metodologie Inorganiche e di Plasmi (IMIP)-CNR
5 LCPO - Laboratoire de Chimie Physique D'Orsay
6 Sincrotrone Trieste
7 SSOLEIL - Synchrotron SOLEIL
8 CEPIA - Département Caractérisation et Elaboration des Produits Issus de l'Agriculture

Coupling an ion trap with synchrotron radiation is shown here to be a powerful approach to measure photoionization cross sections on ionic species relaxed in their ground state. The photoionization efficiency curve of Xe+ ions stored in a Fourier transform ion cyclotron resonance ion trap was recorded at ELETTRA in the 20-23 eV photon energy range. Absolute cross sections were derived by comparison of the photoionization yield of Xe+ with measurements from the ASTRID merged-beam experiment. Multiconfiguration Dirac-Fock calculations were performed for the interpretation of these new data.

Keywords: SYNCHROTRON-RADIATION; SHELL PHOTOIONIZATION; ABSOLUTE; TRANSITIONS; STATES; O4+; AR

Domains: Chemical Sciences; Theoretical and/or physical chemistry

Roland Thissen, J. M. Bizau, C. Blancard, Marcello Coreno, C. Dehon, et al.. Photoionization cross section of Xe+ ion in the pure 5p(5) P-2(3/2) ground level. Physical Review Letters, 2008, 100 (22), pp.223001. ⟨10.1103/PhysRevLett.100.223001⟩. ⟨insu-00360384⟩