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Title: | Measured Cd III Stark widths | Authors: | Bukvić, Srđan Djeniže, S. Srećković, A. Nikolić, Z. |
Keywords: | Atomic data;Line intensity ratio;Line profile;Plasma spectroscopy;Stark width | Issue Date: | 20-Jul-2009 | Journal: | Physics Letters, Section A: General, Atomic and Solid State Physics | Abstract: | The Stark FWHM (Full-Width at Half of the Maximal line intensity, W) have been measured for 16 doubly ionized cadmium (Cd III) spectral lines in a pulsed helium discharge in the wavelength interval between 200 nm and 304 nm. The helium discharge was created in the linear low pressure pulsed arc operated at 19 000 K electron temperature and 5.0 × 1022 m- 3 electron density. The cadmium atoms were sputtered from the cadmium (99.9% purity) cylindrical plates located in the linear part of the discharge tube. The high density of the Cd III ions is boosted by cascade ionization processes via the well populated Cd II energy levels due to the Penning and charge exchange effects. The shapes of the Cd III lines are recorded using a spectrograph (McPherson model 209, 1.33 m focal-length with 2400 grooves/mm holographic grating) and intensified CCD camera (Andor DH740-18F-03) as a high-sensitive detection system. The Stark parameters introduced in this Letter are the first published experimental Cd III Stark widths. © 2009 Elsevier B.V. All rights reserved. |
URI: | https://physrep.ff.bg.ac.rs/handle/123456789/156 | ISSN: | 0375-9601 | DOI: | 10.1016/j.physleta.2009.05.031 |
Appears in Collections: | Journal Article |
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