A merged-beam setup at SOLEIL dedicated to photoelectron–photoion coincidence studies on ionic species

Bizau, J. M.; Cubaynes, D.; Guilbaud, S.; Eassan, N. El; Shorman, M. M. Al; Bouisset, E.; Guigand, J.; Moustier, O.; Marie, Anne-Lise; Nadal, E.; Robert, E.; Nicolas, Christophe; Miron, Catalin

doi:10.1016/j.elspec.2016.03.006

Cited by 22 publications

(29 citation statements)

References 31 publications

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“…36 Detailed descriptions of the beamline instrumentation can be found in ref. [37][38][39][40][41]. A schematic of the used experimental setup can be seen in Fig.…”

Section: Methodsmentioning

confidence: 99%

The effect of relative humidity on CaCl₂ nanoparticles studied by soft X-ray absorption spectroscopy

et al. 2021

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“…36 Detailed descriptions of the beamline instrumentation can be found in ref. [37][38][39][40][41]. A schematic of the used experimental setup can be seen in Fig.…”

Section: Methodsmentioning

confidence: 99%

The effect of relative humidity on CaCl₂ nanoparticles studied by soft X-ray absorption spectroscopy

et al. 2021

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“…The present work was performed on the MAIA (Multi-Analysis Ion Apparatus) photon-ion merged-beam set-up available at the site of the SOLEIL synchrotron radiation facility [15]. MAIA allows the high-quality synchrotron photon beam to interact with a counter-propagating ion beam within a well-defined overlap region, and has been used for the last decade to investigate the relative and absolute cross section inner-shell photoionization behaviours of a range of atomic ions, see for example Refs.…”

Section: Methodsmentioning

confidence: 99%

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

Mosnier¹,

Kennedy²,

Bizau³

et al. 2021

Preprint

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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 eV - 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 eV - 440 eV photon region 1s⟶1s2s22p2 4Pnp and 1s⟶1s2s22p2 2Pnp 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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“…The experiment on the Xe + ion was performed with the MAIA merged-beam setup on the PLEIADES beam line of the synchrotron radiation facility SOLEIL [5,6]. The ions are produced in a 12.4-GHz permanent magnet electron cyclotron resonance ion source (ECRIS) by heating 129 Xe isotopic gas.…”

Section: A Maia Experimentsmentioning

confidence: 99%

“…Therefore direct electron spectroscopic experiments on ions have been reported only in a few cases in the 1990's, such as the resonant Auger decay of Ca + ions [1][2][3] or the 4d photoionization of Xe + ions [4]. Recently, the field has regained interest thanks to the development of powerful synchrotron radiation sources and to the use of a second generation of dedicated experiments such as the MAIA setup installed on the PLEIADES beam line at the synchrotron radiation facility SOLEIL [5]. As an example, this setup enabled the detailed study of the Auger decay of the 4d → nf (n = 4, 5) resonances in the Xe 5+ ion [6].…”

Section: Introductionmentioning

confidence: 99%

4d -inner-shell ionization of Xe+ ions and subsequent Auger decay

et al. 2017

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We have studied Xe + 4d inner-shell photoionization in a direct experiment on Xe + ions, merging an ion and a photon beam and detecting the ejected electrons with a cylindrical mirror analyzer. The measured 4d photoelectron spectrum is compared to the 4d core valence double ionization spectrum of the neutral Xe atom, obtained with a magnetic bottle spectrometer. This multicoincidence experiment gives access to the spectroscopy of the individual Xe 2+ 4d −1 5p −1 states and to their respective Auger decays, which are found to present a strong selectivity. The experimental results are interpreted with the help of ab initio calculations.

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A merged-beam setup at SOLEIL dedicated to photoelectron–photoion coincidence studies on ionic species

Cited by 22 publications

References 31 publications

The effect of relative humidity on CaCl₂ nanoparticles studied by soft X-ray absorption spectroscopy

The effect of relative humidity on CaCl₂ nanoparticles studied by soft X-ray absorption spectroscopy

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

4d -inner-shell ionization of Xe+ ions and subsequent Auger decay

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A merged-beam setup at SOLEIL dedicated to photoelectron–photoion coincidence studies on ionic species

Cited by 22 publications

References 31 publications

The effect of relative humidity on CaCl2 nanoparticles studied by soft X-ray absorption spectroscopy

The effect of relative humidity on CaCl2 nanoparticles studied by soft X-ray absorption spectroscopy

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

4d -inner-shell ionization of Xe+ ions and subsequent Auger decay

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The effect of relative humidity on CaCl₂ nanoparticles studied by soft X-ray absorption spectroscopy

The effect of relative humidity on CaCl₂ nanoparticles studied by soft X-ray absorption spectroscopy