Formation of the hollow<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mn>1</mml:mn><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi>o</mml:mi><mml:mn>1</mml:mn><mml:mn /></mml:mrow></mml:msup></mml:mrow><mml:mi>S</mml:mi></mml:math>state of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow><mml:mi mathvariant="normal">Ne</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn><mml:mo>+</mml:mo></mml:mrow

Pelicon, P.; Čadeź, I.; Žitnik, M.; Šmit, Ž.; Dolenc, S.; Mühleisen, A.; Hall, R. I.

doi:10.1103/physreva.62.022704

Cited by 23 publications

(33 citation statements)

References 17 publications

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“…The Ne 1s double ionization potential (DIP) was early derived experimentally from a hypersatellite in the x-ray emission spectrum of Neon by Ågren et al, 12 and more recently by Pelicon and co-workers, 13 and by Southworth et al 14 measuring the KK-KLL hypersatellite Auger spectra. The 1s double ionization of silver has also been reported.…”

mentioning

confidence: 99%

Relativistic contributions to single and double core electron ionization energies of noble gases

Niskanen

Norman

Aksela

et al. 2011

The Journal of Chemical Physics

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We have performed relativistic calculations of single and double core 1s hole states of the noble gas atoms in order to explore the relativistic corrections and their additivity to the ionization potentials. Our study unravels the interplay of progression of relaxation, dominating in the single and double ionization potentials of the light elements, versus relativistic one-electron effects and quantum electrodynamic effects, which dominate toward the heavy end. The degree of direct relative additivity of the relativistic corrections for the single electron ionization potentials to the double electron ionization potentials is found to gradually improve toward the heavy elements. The Dirac-Coulomb Hamiltonian is found to predict a scaling ratio of ∼4 for the relaxation induced relativistic energies between double and single ionization. Z-scaling of the computed quantities were obtained by fitting to power law. The effects of nuclear size and form were also investigated and found to be small. The results indicate that accurate predictions of double core hole ionization potentials can now be made for elements across the full periodic table.

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mentioning

confidence: 99%

Relativistic contributions to single and double core electron ionization energies of noble gases

Niskanen

Norman

Aksela

et al. 2011

The Journal of Chemical Physics

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“…Pump-probe experiments using X rays and optical lasers are being performed at synchrotron-radiation facilities (Reis et al, 2001;Chen et al, 2001) and are expected to be widely used at XFELs to study atomic motion in molecules and materials on the sub-picosecond time scale. With the advent of laser-based subfemtosecond pump-probe techniques, time-resolved studies of atomic inner-shell electronic motion has recently been demonstrated (Drescher et al, 2002).…”

Section: X-ray Photoionization In a Strong Optical Laser Fieldmentioning

confidence: 99%

“…The single-K ionization energy of neon is 870:21 eV (Schmidt, 1997) and the double-K ionization energy is 1863 eV (Pelicon et al, 2000). A gas jet of neon was photoionized by a 5000-eV X-ray beam at the APS, and the Auger-electron spectrum was recorded with a cylindrical-mirror analyzer.…”

Section: Double K-shell Photoionization Of Neonmentioning

confidence: 99%

Inner-shell photoionization in weak and strong radiation fields

Southworth

Dunford

Ederer

et al. 2004

Radiation Physics and Chemistry

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“…The threshold for double-K ionization of Ne is 1863 eV [14] compared with 870.21 eV for single-K ionization [5]. Ne K vacancies decay predominantly by emission of K-LL Auger electrons rather than by fluorescence [15].…”

Section: Ne[kk] At 5 Kevmentioning

confidence: 99%

“…Using the multiconfiguration Dirac-Fock method, Chen [18] calculated the energies and transition rates of the KK-KLL Auger hypersatellite spectrum. The hypersatellites were used to determine R for Ne by electron impact [14], and the same method was used here. For the present experiment, double-K vacancies were produced in Ne by photoionization with a 5 keV photon beam at Argonne's Advanced Photon Source (APS), and the resulting K-LL and KK-KLL Auger spectra were recorded with a cylindrical-mirror electron analyzer (CMA).…”

Section: Ne[kk] At 5 Kevmentioning

confidence: 99%

Double K-Vacancy Production by X-Ray Photoionization

Southworth¹,

Dunford²,

Kanter³

et al. 2003

AIP Conference Proceedings

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Abstract.We have studied double K-shell photoionization of Ne and Mo (Z = 10 and 42) at the Advanced Photon Source. Double K-vacancy production in Ne was observed by recording the KK-KLL Auger hypersatellite spectrum. Comparison is made with calculations using the multiconfiguration Dirac-Fock method. For Mo, double K-vacancy production was observed by recording the Kα β fluorescence hypersatellite and satellite x rays in coincidence. From the intensities of the Auger or x-ray hypersatellites relative to diagram lines, the probabilities for double K-vacancy production relative to single K-vacancies were determined. These results, along with reported measurements on other atoms, are compared with Z-scaling calculations of the high-energy limits of the doubleto-single K-shell photoionization ratio.

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Formation of the hollow1so1Sstate ofNe2+

Cited by 23 publications

References 17 publications

Relativistic contributions to single and double core electron ionization energies of noble gases

Relativistic contributions to single and double core electron ionization energies of noble gases

Inner-shell photoionization in weak and strong radiation fields

Double K-Vacancy Production by X-Ray Photoionization

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