X-RAY-SPECTRA OF F-LIKE, O-LIKE, AND N-LIKE BARIUM FROM AN ELECTRON-BEAM ION TRAP

被引：17

作者：

HUTTON, R ^{[1
]}

BEIERSDORFER, P ^{[1
]}

OSTERHELD, AL ^{[1
]}

MARRS, RE ^{[1
]}

SCHNEIDER, MB ^{[1
]}

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB, DIV HIGH TEMP PHYS, LIVERMORE, CA 94550 USA

来源：

PHYSICAL REVIEW A | 1991年 / 44卷 / 03期

关键词：

D O I：

10.1103/PhysRevA.44.1836

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An electron-beam ion trap has been used to study the spectra of highly ionized barium. Spectra of N-, O-, and F-like barium were produced by 10-keV electron-impact excitation and ionization and were observed using a von Hamos crystal spectrometer. Calibration lines were obtained by injection of Ti, V, Cr, and Zn into the trap and observation of H- and He-like transitions. A number of lines were identified for each of the ionization stages, and their energies were measured with a typical accuracy of about 150 ppm. These measurements have been compared to calculations using a multiconfigurational Dirac-Fock code. Agreement with the data is best for the F-like transitions, and diminishes for transitions in the more highly charged ions.

引用

页码：1836 / 1842

页数：7

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