Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/5906
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dc.contributor.authorChaudhuri, R. K-
dc.contributor.authorChattopadhyay, S-
dc.contributor.authorMahapatra, U. S-
dc.date.accessioned2012-09-24T12:09:10Z-
dc.date.available2012-09-24T12:09:10Z-
dc.date.issued2012-08-
dc.identifier.citationPhysics of Plasmas, Vol. 19, No. 8, pp. 082701-1 - 082701-7en
dc.identifier.issn1070-664X-
dc.identifier.urihttp://hdl.handle.net/2248/5906-
dc.descriptionRestricted Accessen
dc.description.abstractWe report the plasma screening effect on the first ionization potential (IP) and [He]2s/sup2/ (/sup1/S/sup0/)→[He]2s2p/2s3p allowed (/sup1/P/sub1/) and inter-combination transitions (/sup3/P/sub1/) in some selected Be-like ions. In addition, we investigate the spectral properties of [Ne]3s (/sup2/S/sub1/2/)→[Ne]np (/sup2P/sub1/2/ and /sup2/P/sub3/2/ for n = 3, 4) transitions in Ca X and Fe XVI ions (Na I isoelectronic sequence) and [He]3s(/sup2/S/sub1/2/)→[He]np (/sup2/P/sub1/2 and /sup2/P/sub3/2/ for n = 2, 3) transitions in Li, B II, and N IV (Li I isoelectronic sequence) under plasma environment. The state-of-the-art relativistic coupled cluster calculations using the Debye model of plasma for electron-nucleus interaction show that (a) the ionization potential decreases sharply with increasing plasma strength and (b) the gap between the [He]2s2 (/sup1/S/sub0/)→[He]2s2p(/sup1,3/P/sup1/) energy levels increases with increasing plasma potential and nuclear charge. It is found that the [He]2s/sup2/ (/sup1/S/sub0/)→2s3p (/sup1,3/P/sub1/) transition energy decreases uniformly with increasing plasma potential and nuclear charge. In other words, the spectral lines associated with 2s-2p (i.e., Δn = 0, where n corresponds to principle quantum number) transitions in Be I isoelectronic sequence exhibit a blue-shift (except for Be I, B II, and the lowest inter-combination line in C III, which exhibit a red-shift), whereas those associated with 2s-3p (i.e., Δn ≠ 0) transitions are red-shifted. Similar trend is observed in Li I and Na I isoelectronic sequences, where spectral lines associated with Δn = 0 (Δn ≠ 0) are blue-shifted (red-shifted). The effect of Coulomb screening on the spectral lines of ions subjected to plasma is also addressed.en
dc.language.isoenen
dc.publisherAmerican Institute of Physicsen
dc.relation.urihttp://dx.doi.org/10.1063/1.4742177en
dc.rights© American Institute of Physicsen
dc.subjectBerylliumen
dc.subjectBoronen
dc.subjectCalciumen
dc.subjectCarbonen
dc.subjectCoupled cluster calculationsen
dc.subjectExcited statesen
dc.subjectHelium neutral atomsen
dc.subjectIonisation potentialen
dc.subjectIronen
dc.subjectIsoelectronic seriesen
dc.subjectLithiumen
dc.subjectNeonen
dc.subjectNitrogenen
dc.subjectNuclear chargeen
dc.subjectOxygenen
dc.subjectPotassiumen
dc.subjectRed Shiften
dc.subjectRelativistic Correctionsen
dc.subjectRelativistic Plasmasen
dc.subjectShieldingen
dc.subjectSiliconen
dc.subjectSodiumen
dc.subjectSulphuren
dc.titleSpectral lines behavior of Be I and Na I isoelectronic sequence in Debye plasma environmenten
dc.typeArticleen
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