A De Fanis et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 2229 doi:10.1088/0953-4075/38/13/015
A De Fanis1, G Prümper2, U Hergenhahn2,3, E Kukk2,4, T Tanaka5, M Kitajima5, H Tanaka5, S Fritzsche6, N M Kabachnik7,8 and K Ueda2
Show affiliationsWe employ a novel technique in which highly excited Rydberg states of Ne+ 2p4np are populated via PCI-induced recapture of the near-threshold 1s photoelectron (De Fanis et al 2004 Phys. Rev. A 70 040702) to investigate valence inter-multiplet Auger transitions. The following series of the transitions have been observed: Ne+ 2p4(1D)np 2L → Ne2+ 2p4 3PJ, Ne+ 2p4(1S)np 2P →Ne2+ 2p4 3PJ and Ne+ 2p4(1S)np 2P →Ne2+ 2p4 1D. Their energy positions, quantum defects and the anisotropy parameters of the Auger electron emission have been determined. Experimental results are in good agreement with multi-configuration Dirac–Fock calculations carried out as a part of this study. The importance of interference effects for decays via naturally overlapping fine-structure components of the intermediate state is discussed.
32.80.Hd Auger effect (including Coster-Krönig transitions)
32.80.Rm Multiphoton ionization and excitation to highly excited states
31.15.-p Calculations and mathematical techniques in atomic and molecular physics
Issue 13 (14 July 2005)
Received 21 February 2005, in final form 4 May 2005
Published 14 June 2005
A De Fanis et al 2005 J. Phys. B: At. Mol. Opt. Phys. 38 2229
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