Article (Scientific journals)
Measurements of the ground-state ionization energy and wavelengths for the 1snp P-1(1)*-1s(2) S-1(0) (n=4-9) lines of Mg XI and FVIII
Pal'chikov, V. G.; Faenov, A. Y.; Skobelev, I. Y. et al.
2002In Journal of Physics : B Atomic Molecular and Optical Physics, 35 (12), p. 2741-2754
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Abstract :
[en] The wavelengths of the 1snp P-1(1)0-1s(2) S-1(0) transitions in the He-like Mg XI (n = 4-9) and F VIII (n = 4-8) have been measured in laser-produced plasmas. The accuracy of the present measurements (0.4-1.6 mAngstrom) is a large improvement over previous results. The Rydberg series is used to determine the ground-state ionization energy of F VIII and Mg XI: E-ion (F VIII) = 953.96 +/- 0.11 eV, E-ion (Mg XI) = 1761.88 +/- 0.15 eV. These experimental results are compared with theoretical data calculated by the 1/Z-expansion method and the HFR and MCDF approaches. Fairly good agreement between theory and experiment is observed with a precision up to 5 x 10(-5). Radiative corrections to the 1s(2) S-1(0) state are analysed and compared with experiments. It is found that QED corrections to the ground-state ionization energy are significant at the present level of experimental accuracy.
Disciplines :
Physics
Electrical & electronics engineering
Chemistry
Author, co-author :
Pal'chikov, V. G.
Faenov, A. Y.
Skobelev, I. Y.
Magunov, A. I.
Pikuz, T. A.
Rosmej, F. B.
Hoffmann, D. H. H.
Suss, W.
Geissel, M.
Biémont, Emile ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Quinet, Pascal  ;  Université de Liège - ULiège > Département de physique > Physique nucléaire, atomique et spectroscopie
Palmeri, P.
Sasaki, A.
Utsumi, T.
More authors (4 more) Less
Language :
English
Title :
Measurements of the ground-state ionization energy and wavelengths for the 1snp P-1(1)*-1s(2) S-1(0) (n=4-9) lines of Mg XI and FVIII
Publication date :
28 June 2002
Journal title :
Journal of Physics : B Atomic Molecular and Optical Physics
ISSN :
0953-4075
eISSN :
1361-6455
Publisher :
Iop Publishing Ltd, Bristol, United Kingdom
Volume :
35
Issue :
12
Pages :
2741-2754
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 19 March 2010

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