K-shell excitation dielectronic recombination resonance strengths of highly charged He-like to O-like Xe ions

Dielectronic recombination measurements for highly charged ions were performed at the Stockholm refrigerated electron beam ion trap. We have obtained KLL DR resonance strengths for highly charged H- and He-like sulfur and silicon ions. The experimental results are compared with the theoretical data obtained from GRASP II code. Both the experimental and calculated results agree well within the experimental error bars. Moreover, the dielectronic recombination resonance strengths are used to obtain the new scaling parameters by incorporating our results with the previous measurements and to check the behaviour of scaling formula for H- and He-like isoelectronic sequences.

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Contributions of high-n dielectronic satellites to krypton K-shell emission spectra

Canadian Journal of Physics ◽

10.1139/p03-097 ◽

2003 ◽

Vol 81 (10) ◽

pp. 1177-1183 ◽

Cited By ~ 2

Author(s):

G El-Machtoub

Keyword(s):

Spectral Data ◽

Emission Spectra ◽

Dielectronic Recombination ◽

Intensity Factors ◽

Resonance States ◽

X Ray ◽

Intermediate Resonance ◽

Resonance Strengths ◽

Proper Analysis

We report here on the calculation of dielectronic recombination resonance strengths for high-lying K-shell resonance states of He-, Li-, and Be-like krypton ions. For proper analysis of spectral data explicit calculations of satellite intensity factors are carried out for all possible intermediate resonance states with n = 210. Our calculations successfully predict the details of X-ray emission spectra of highly charged krypton ions interacting with electron beams.PACS Nos.: 32.30.Rj, 32.70.Cs, 32.80.Rm, 34.79.+e

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Resonance strengths for KLL dielectronic recombination of highly charged mercury ions and improved empirical Z -scaling law

Physical Review A ◽

10.1103/physreva.99.012506 ◽

2019 ◽

Vol 99 (1) ◽

Cited By ~ 2

Author(s):

Zoltán Harman ◽

Chintan Shah ◽

Antonio J. González Martínez ◽

Ulrich D. Jentschura ◽

Hiro Tawara ◽

...

Keyword(s):

Scaling Law ◽

Dielectronic Recombination ◽

Mercury Ions ◽

Resonance Strengths

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Dielectronic Recombination in the Average-Atom Model

International Astronomical Union Colloquium ◽

10.1017/s0252921100107730 ◽

1988 ◽

Vol 102 ◽

pp. 215

Author(s):

R.M. More ◽

G.B. Zimmerman ◽

Z. Zinamon

Keyword(s):

Detailed Balance ◽

Systematic Errors ◽

Dielectronic Recombination ◽

Rate Equations ◽

Strong Correlations ◽

Dense Plasmas ◽

Atom Model ◽

New Feature ◽

Average Atom Model ◽

Attachment Process

Autoionization and dielectronic attachment are usually omitted from rate equations for the non–LTE average–atom model, causing systematic errors in predicted ionization states and electronic populations for atoms in hot dense plasmas produced by laser irradiation of solid targets. We formulate a method by which dielectronic recombination can be included in average–atom calculations without conflict with the principle of detailed balance. The essential new feature in this extended average atom model is a treatment of strong correlations of electron populations induced by the dielectronic attachment process.

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DIELECTRONIC RECOMBINATION IN THE AVERAGE-ATOM MODEL

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1988142 ◽

1988 ◽

Vol 49 (C1) ◽

pp. C1-215-C1-215

Author(s):

R. M. MORE ◽

G. B. ZIMMERMAN ◽

Z. ZINAMON

Keyword(s):

Dielectronic Recombination ◽

Atom Model ◽

Average Atom Model

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EXPERIMENTS ON ELECTRON IMPACT EXCITATION AND DIELECTRONIC RECOMBINATION AT HARVARD-SMITHSONIAN

Le Journal de Physique Colloques ◽

10.1051/jphyscol:1989148 ◽

1989 ◽

Vol 50 (C1) ◽

pp. C1-405-C1-409

Author(s):

L. D. GARDNER ◽

J. L. KOHL ◽

D. W. SAVIN ◽

A. R. YOUNG

Keyword(s):

Electron Impact ◽

Dielectronic Recombination ◽

Impact Excitation ◽

Electron Impact Excitation

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Photoionization Cross-Sections of Carbon-Like N+ Near the K-Edge (390–440 eV)

Atoms ◽

10.3390/atoms9020027 ◽

2021 ◽

Vol 9 (2) ◽

pp. 27

Author(s):

Jean-Paul Mosnier ◽

Eugene T. Kennedy ◽

Jean-Marc Bizau ◽

Denis Cubaynes ◽

Ségolène Guilbaud ◽

...

Keyword(s):

High Resolution ◽

Cross Section ◽

Cross Sections ◽

Experimental Studies ◽

Photoionization Cross Section ◽

Theoretical Work ◽

Rydberg Series ◽

R Matrix ◽

Resonance Strengths ◽

Nitrogen Ion

High-resolution K-shell photoionization cross-sections for the C-like atomic nitrogen ion (N+) are reported in the 398 eV (31.15 Å) to 450 eV (27.55 Å) energy (wavelength) range. The results were obtained from absolute ion-yield measurements using the SOLEIL synchrotron radiation facility for spectral bandpasses of 65 meV or 250 meV. In the photon energy region 398–403 eV, 1s⟶2p autoionizing resonance states dominated the cross section spectrum. Analyses of the experimental profiles yielded resonance strengths and Auger widths. In the 415–440 eV photon region 1s⟶(1s2s22p2 4P)np and 1s⟶(1s2s22p2 2P)np resonances forming well-developed Rydberg series up n=7 and n=8 , respectively, were identified in both the single and double ionization spectra. Theoretical photoionization cross-section calculations, performed using the R-matrix plus pseudo-states (RMPS) method and the multiconfiguration Dirac-Fock (MCDF) approach were bench marked against these high-resolution experimental results. Comparison of the state-of-the-art theoretical work with the experimental studies allowed the identification of new resonance features. Resonance strengths, energies and Auger widths (where available) are compared quantitatively with the theoretical values. Contributions from excited metastable states of the N+ ions were carefully considered throughout.

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