Open AccessPrecision measurement of excited spectra of oxygen ions
Author(s) -
Zhenhua Yang,
Xiaoan Zhang,
Zhao Yong-Tao,
Yin Wei-Wei,
Ningxi Li
Publication year - 2006
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.55.4520
Subject(s) - monochromator , spectral line , excited state , atomic physics , ion , ionization , foil method , materials science , tandem accelerator , atom (system on chip) , beam (structure) , physics , optics , wavelength , quantum mechanics , astronomy , computer science , composite material , embedded system
Spectra of the ionized oxygen atom were researched with the Pro-500i monochromator equipped with CCD. The beam foil method was used at energy of 2 MeV in a 2×1.7 Tandem accelerator. In this work, we report 201 spectral lines determined in the region 250—350 nm, and most spectral lines were attributed to nl energy level transitions from OⅡ to OⅣ atoms. Our experimental results are in good agreement with existing theoretical calculations. Many lines reported in this paper have not been measured in past experiments, and a majority of them are week transitional lines.