X-ray spectra emitted by Cl14+ ions in ECRIS plasmas

作者: J.P. Santos , M.C. Martins , A.M. Costa , P. Indelicato , F. Parente

DOI: 10.1016/J.VACUUM.2008.03.044

关键词: IonizationExcited stateX ray spectraPlasmaIonExcitationIon sourceAtomic physicsElectron cyclotron resonanceChemistry

摘要: Abstract We study the contribution of most important processes leading to creation excited states Cl14+ ions from ground configurations Cl in an Electron Cyclotron Resonance Ion Source (ECRIS), which lead emission K X-ray lines. Theoretical values for inner-shell excitation, and KL ionization cross-sections, energies transition probabilities de-excitation are calculated framework Multi-Configuration Dirac–Fock (MCDF) method. With reasonable assumptions about electron energy distribution, a theoretical Kα spectrum is obtained, reproduces closely recent experimental result.

参考文章(20)
H. F. . Beyer, H.-Jürgen Kluge, V. P. Shevelʹko, X-Ray Radiation of Highly Charged Ions ,(1997)
Paul Ludwig, Marc Delaunay, Jean-Claude Rocco, Francois Bourg, Francois Zadworny, Jean-Marc Mathonnet, Pierre Sermet, Claude Jaquot, Richard Geller, Rene Gualandris, Electron cyclotron resonance ion source ,(1984)
J.P. Santos, J.P. Marques, F. Parente, E. Lindroth, S. Boucard, P. Indelicato, Multiconfiguration Dirac-Fock calculation of 2s1/2 - 2p3/2 transition energies in highly ionized bismuth, thorium, and uranium European Physical Journal D. ,vol. 1, pp. 149- 163 ,(1998) , 10.1007/S100530050075
Yong-Ki Kim, Kwok-tsang Cheng, Beth cross sections for the sodium isoelectronic sequence Physical Review A. ,vol. 18, pp. 36- 47 ,(1978) , 10.1103/PHYSREVA.18.36
R. Friedlein, S. Herpich, U. Lehnert, H. Tyrroff, H. Wirth, C. Zippe, G. Zschornack, X-ray spectroscopy on ECR plasmas Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 98, pp. 585- 588 ,(1995) , 10.1016/0168-583X(95)00017-8
R. Geller, Electron cyclotron resonance sources: Historical review and future prospects (invited) Review of Scientific Instruments. ,vol. 69, pp. 1302- 1310 ,(1998) , 10.1063/1.1148797
J P Santos, J P Marques, F Parente, E Lindroth, P Indelicato, J P Desclaux, Relativistic 2s1/2 (L1) atomic subshell decay rates and fluorescence yields for Yb and Hg Journal of Physics B. ,vol. 32, pp. 2089- 2097 ,(1999) , 10.1088/0953-4075/32/9/304
J P Santos, F Parente, Y-K Kim, Cross sections for K-shell ionization of atoms by electron impact Journal of Physics B. ,vol. 36, pp. 4211- 4224 ,(2003) , 10.1088/0953-4075/36/21/002
Yong-Ki Kim, José Paulo Santos, Fernando Parente, Extension of the binary-encounter-dipole model to relativistic incident electrons Physical Review A. ,vol. 62, pp. 052710- ,(2000) , 10.1103/PHYSREVA.62.052710
C Bélenger, P Defrance, E Salzborn, V P Shevelko, H Tawara, D B Uskov, Double ionization of neutral atoms, positive and negative ions by electron impact Journal of Physics B. ,vol. 30, pp. 2667- 2679 ,(1997) , 10.1088/0953-4075/30/11/017