Analysis of the spectra of In XII–XIV and Sn XIII–XV in the far-VUV region

Churilov, S S; Ryabtsev, A. N.

doi:10.1134/s0030400x06080017

Cited by 55 publications

(71 citation statements)

References 16 publications

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“…The spectra reported in this article are relevant to the verification of the identifications of the EUV spectra of Sn ions [9,10] which are used as a "fuel" in the radiation sources for the projection lithography at the 135 Å wavelength. The previous analyses in [9,10] were performed without any isoelectronic or isoionic support.…”

Section: Discussionmentioning

confidence: 99%

“…The previous analyses in [9,10] were performed without any isoelectronic or isoionic support. The isoelectronic sequence Rh VIII-Cd XI was recently studied in [7].…”

Section: Discussionmentioning

confidence: 99%

“…The results for the palladium isonuclear spectra were recently published (see [8] and references therein). Such isoelectronic data are necessary for validation of previously reported analyses of the corresponding tin ion spectra [9,10]. Research on these spectra is also of general interest to atomic physics for improving of theoretical methods of calculations of multi-electron heavy atom spectra.…”

Section: Introductionmentioning

confidence: 96%

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Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Ryabtsev¹,

Kononov²

2017

Atoms

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Abstract:The spectrum of silver, excited in a vacuum spark, was recorded in the region 150-350 Å on a 3-m grazing incidence spectrograph. The resonance 4d k -(4d k−1 5p + 4d k−1 4f + 4p 5 4d k+1 ) was studied in the Ag 6+ -Ag 8+ spectra (Ag VII-Ag IX) with k = 5-3, respectively. Several hundred lines were identified with the aid of the Cowan code and orthogonal operator technique calculations. The energy levels were found and the transition probabilities were calculated.

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Section: Discussionmentioning

confidence: 99%

“…The previous analyses in [9,10] were performed without any isoelectronic or isoionic support. The isoelectronic sequence Rh VIII-Cd XI was recently studied in [7].…”

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 1 more Smart Citation

Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Ryabtsev¹,

Kononov²

2017

Atoms

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“…Recently the probabilities of transitions (2) at N = 2 for Sn 12+ have been calculated semiempirically, taking into account configurations 4p 6 4d nl (n ≤ 6, l = s, p, d, f ), 4p 5 4d 3 , 4p 6 5s 2 , 4p 5 4d 2 5s and scaling down various integrals to different extent [17]. These results have been used for the identification of about seventy lines in the vacuum spark spectrum.…”

Section: Resultsmentioning

confidence: 99%

Intensity enhancement in the emission spectra of Sb, Sn, and W ions due to the mixing of configurations with symmetric exchange of symmetry

Kučas¹

2007

Lithuanian J. Phys.

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The essential narrowing of emission spectrum due to the configuration mixing with a symmetric exchange of symmetry is considered for ions with an open 4d N electron shell. The relativistic CI calculations have been performed for Sn 9+ -Sn 12+and Sb 10+ -Sb 11+ ions, which are the most promising emitters for EUV lithography, and for W q+ ions, which give a strong undesirable emission in tokamak plasma. It is shown that the inclusion of interaction with other energetically neighbouring configurations only weakly influences the integral characteristics of the main group of lines or quasicontinuum band -its total intensity, width, and shape. The similarity between photoexcitation and emission spectra, related with the ground level, that has been previously established for highly charged tungsten ions, manifests itself also at medium ionization degrees. The relative widths of intense groups of lines in such spectra of tin and antimony ions increase in comparison with tungsten; however, the spectra of Sn 9+ and Sb 10+ with a half-filled 4d 5 shell have an extremely narrow width.

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“…The strong peak in tin emission over the range 130-140 Å consists of 4p 6 4d m -(4p 6 4d m−1 5p + 4p 6 4d m−1 4f + 4p 5 4d m+1 ) transitions in several spectra ranging from Sn X (m = 5) to Sn XV (m = 0). The most intense lines in these highly ionized tin spectra were identified [1,2] using the energy parameter interpolation along the isonuclear Sn VI-VIII, Sn XIV sequence in the framework of the Cowan code calculations [3]. The identification of such complex transitions should be confirmed by a comparison with the spectra of similar transitions in the isoelectronic ions of neighbouring elements, which are mostly unknown.…”

Section: Introductionmentioning

confidence: 99%

High-Frequency Response in Ferroelectric BaSrTiO₃ Thin Films Studied by Terahertz Time-Domain Spectroscopy

Mounaix¹,

Tondusson²,

Sarger³

et al. 2005

Jpn. J. Appl. Phys.

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Using a 3 m 3600 lines mm −1 grazing incidence spectrograph and a triggered vacuum spark as a source of excitation the Rh VIII, Pd IX, Ag X and Cd XI spectra have been studied in the 140-330 Å region for the first time. About 100 lines of the resonance 4d 2 -(4d5p + 4d4f + 4p 5 4d 3 ) transitions in each spectrum were identified with the aid of Hartree-Fock and parametric calculations. Almost all levels in the 4d 2 and 4d5p configurations and 23 upper levels of the mixed (4d4f + 4p 5 4d 3 ) configurations were located.PACS numbers: 31.15.bu, 31.15.vj, 32.10.Fn, 32.30.Jc, 32.70.Fw (Some figures in this article are in colour only in the electronic version.) 1

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Analysis of the spectra of In XII–XIV and Sn XIII–XV in the far-VUV region

Cited by 55 publications

References 16 publications

Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Intensity enhancement in the emission spectra of Sb, Sn, and W ions due to the mixing of configurations with symmetric exchange of symmetry

High-Frequency Response in Ferroelectric BaSrTiO₃ Thin Films Studied by Terahertz Time-Domain Spectroscopy

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Analysis of the spectra of In XII–XIV and Sn XIII–XV in the far-VUV region

Cited by 55 publications

References 16 publications

Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Resonance Transitions in the Spectra of the Ag6+–Ag8+ Ions

Intensity enhancement in the emission spectra of Sb, Sn, and W ions due to the mixing of configurations with symmetric exchange of symmetry

High-Frequency Response in Ferroelectric BaSrTiO3 Thin Films Studied by Terahertz Time-Domain Spectroscopy

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High-Frequency Response in Ferroelectric BaSrTiO₃ Thin Films Studied by Terahertz Time-Domain Spectroscopy