"Electron-impact excitation of carbon"

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dc.contributor.author Zatsarinny, Oleg
dc.contributor.author Bartschat, Klaus
dc.contributor.author Bandurina, Ludmila
dc.contributor.author Gedeon, Viktor
dc.date.accessioned 2006-06-07T14:30:13Z
dc.date.available 2006-06-07T14:30:13Z
dc.date.issued 2006-06-07T14:30:13Z
dc.identifier.uri http://hdl.handle.net/2092/383
dc.description.abstract The B-spline R-matrix method was used to study electron-impact excitation of carbon from threshold to 60 eV. A multi-configuration Hartree-Fock method with non-orthogonal orbitals generated a very accurate target description. The close-coupling expansion included the bound and autoionizing states of neutral carbon derived from the (1s2)(2s2)(2p2),(1s2)(2s2)(2p)(3s),(1s2)(2s2)(2p3p),(1s2)(2s2)(2p3p),(1s2)(2s2)(2p4s),(1s2)(2s2p3), and (1s3)(2p4) configurations, plus pseudo-states to fully account for the polarizability of the ground state. Our predictions for the cross sections show significant discrepancies with those from previous calculations carried out with the standard R-matrix approach in a similar scattering model. These discrepancies are mostly due to the different target descriptions. The cross sections for excitation from the ground state (2p2)3p and the metastable (2p2)1d and (2p2)1s states also exhibit prominent resonance structures in the low-energy region. Classifications for these resonances will be presented. en
dc.description.sponsorship Drake University, College of Arts and Sciences, Department of Physics and Astronomy. en
dc.format.extent 741125 bytes
dc.format.extent 739083 bytes
dc.format.extent 741125 bytes
dc.format.mimetype image/jpeg
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dc.language.iso en_US
dc.relation.ispartofseries DUCURS 2005;14
dc.subject Electronic excitation. en
dc.subject Electron impact ionization. en
dc.subject Ionization of gases. en
dc.title "Electron-impact excitation of carbon" en
dc.type Presentation en

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  • DUCURS [193]
    Poster sessions and presentation from the Drake University Conference on Undergraduate Research in the Sciences held each April at Olmsted Center on the Drake campus.

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