Churilov, S.
, Joshi, Y.
, Reader, J.
and Kildiyarova, R.
(2004),
4p<sup>6</sup>4d<sup>8</sup>-(4d<sup>7</sup>5p+4d<sup>7</sup>4f+4p<sup>5</sup>4d<sup>9</sup>) Transitions in Xe XI, Physica Scripta
(Accessed October 13, 2025)
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4p64d8-(4d75p+4d74f+4p54d9) Transitions in Xe XI
Published
Author(s)
S S. Churilov, Y N. Joshi, , R R. Kildiyarova
Abstract
The spectrum of ten-times ionized xenon Xe XI was observed in the region 105 Angstrom} to 157 Angstrom} with a low-inductance vacuum spark and a 10.7 m grazing-incidence spectrograph. About 200 lines belonging to the 4p64d8-(4d75p+4d74f+4p54d9) transition array were observed. Of these lines, 140 are in the Region 130 Angstrom} to 140 Angstrom}, which is of importance for extreme ultraviolet (EUV) projection lithography. The spectrum was interpreted by means of Hartree-Fock calculations and orthogonal parameters using scaling factors for the energy parameters obtained by extrapolation along the Rh II isoelectronic sequence. All 9 levels of the 4d8 configuration and 123 levels of the 4d75p+4d74f+4p54d9 configurations were established. Transition probabilities for all observed lines were calculated with fitted values of the energy parameters.Citation
Physica Scripta
Volume
70
Pub Type
Journals
Keywords
energy levels, extreme ultraviolet, spectrum, ten-times ionized, theoretical calculations, transition probabilities, wavelengths, xenon
Citation
Issues
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Created August 31, 2004, Updated October 12, 2021