Search Results - "Schippers, S"
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Soft X-Ray-induced Dimerization of Methane
Published in The Astrophysical journal (01-07-2023)“…Abstract Carbon 1s excitation of methane, CH 4 , has been studied in the gas phase using the ion trap integrated with the photon–ion instrument at PETRA…”
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2
Merits of atomic cascade computations
Published in The European physical journal. D, Atomic, molecular, and optical physics (01-06-2024)“…Atomic cascades refer—first and foremost—to the stepwise de-excitation of excited atoms owing to the emission of electrons or photons. Apart from dedicated…”
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3
Multiple Photodetachment of Carbon Anions via Single and Double Core-Hole Creation
Published in Physical review letters (28-02-2020)“…We report on new measurements of m-fold photodetachment (m=2-5) of carbon anions via K-shell excitation and ionization. The experiments were carried out…”
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4
APPA at FAIR: From fundamental to applied research
Published in Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms (15-12-2015)“…FAIR with its intense beams of ions and antiprotons provides outstanding and worldwide unique experimental conditions for extreme matter research in atomic and…”
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5
Observation of a four-electron Auger process in near-K-edge photoionization of singly charged carbon ions
Published in Physical review letters (09-01-2015)“…Single, double, and triple ionization of C(1+) ions by single photons is investigated in the energy range of 286-326 eV, i.e., in the range from the…”
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6
Vibrationally Resolved Inner‐Shell Photoexcitation of the Molecular Anion C2
Published in Chemphyschem (01-06-2023)“…Carbon 1s core‐hole excitation of the molecular anion C2− has been experimentally studied at high resolution by employing the photon‐ion merged‐beams technique…”
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7
Experimental studies on photoabsorption by endohedral fullerene ions with a focus on Xe@C 60 + confinement resonances
Published in Physica scripta (01-06-2021)“…Abstract A brief overview on the status of experimental investigations into photoionization and fragmentation of fullerenes and endohedral fullerenes by…”
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8
An unexpectedly low oscillator strength as the origin of the Fexvii emission problem
Published in Nature (London) (13-12-2012)“…Highly charged iron (Fe super(16+), here referred to as Fexvii) produces some of the brightest X-ray emission lines from hot astrophysical objects, including…”
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9
Vibrationally Resolved Inner-Shell Photoexcitation of the Molecular Anion C 2
Published in Chemphyschem (01-06-2023)“…Carbon 1s core-hole excitation of the molecular anion C has been experimentally studied at high resolution by employing the photon-ion merged-beams technique…”
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10
Near-K-Edge Double and Triple Detachment of the F^{-} Negative Ion: Observation of Direct Two-Electron Ejection by a Single Photon
Published in Physical review letters (30-03-2018)“…Double and triple detachment of the F^{-}(1s^{2}2s^{2}2p^{6}) negative ion by a single photon have been investigated in the photon energy range 660 to 1000 eV…”
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11
Disentangling the Photodissociation Dynamics of the HF+ Molecular Radical via Kinetic-Energy-Release-Resolved F 1s Core Excitation and Ionization
Published in The journal of physical chemistry letters (11-02-2021)“…The F 1s core level photoionization of the ionic molecular radical HF+ has been studied using the photon–ion merged-beams technique at a synchrotron radiation…”
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12
Experimental studies on photoabsorption by endohedral fullerene ions with a focus on Xe@C60 + confinement resonances
Published in Physica scripta (12-04-2021)“…A brief overview on the status of experimental investigations into photoionization and fragmentation of fullerenes and endohedral fullerenes by absorption of a…”
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13
An unexpectedly low oscillator strength as the origin of the Fe xvii emission problem
Published in Nature (London) (13-12-2012)“…Fluorescence of iron ions induced by an X-ray laser allows the relative oscillator strength for Fe xvii emission to be determined; it is found to differ by 3.6…”
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14
Photodissociation of protonated leucine-enkephalin in the VUV range of 8-40 eV
Published in The Journal of chemical physics (14-01-2011)“…Until now, photodissociation studies on free complex protonated peptides were limited to the UV wavelength range accessible by intense lasers. We have studied…”
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15
Breit interaction in dielectronic recombination of hydrogenlike uranium
Published in Physical review. A, Atomic, molecular, and optical physics (18-02-2011)Get full text
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16
Single-photon multiple detachment in fullerene negative ions: absolute ionization cross sections and the role of the extra electron
Published in Physical review letters (26-07-2013)“…We have obtained experimental photo-double- and photo-triple-detachment cross sections for the fullerene negative ion using Advanced Light Source photons of…”
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17
Significant redistribution of Ce 4d oscillator strength observed in photoionization of endohedral Ce@C82+ ions
Published in Physical review letters (26-09-2008)“…Mass-selected beams of atomic Ceq+ ions (q = 2, 3, 4), of C82+ and of endohedral Ce@C82+ ions were employed to study photoionization of free and encaged cerium…”
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18
Screened radiative corrections from hyperfine-split dielectronic resonances in lithiumlike scandium
Published in Physical review letters (25-01-2008)“…Term energies for dielectronic-recombination Rydberg resonances below 0.07 eV are determined for Sc18+ with absolute accuracies below 0.0002 eV by electron…”
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Electron-ion Recombination Rate Coefficients of Be-like 40Ca16
Published in The Astrophysical journal (01-08-2018)“…Electron-ion recombination rate coefficients for beryllium-like calcium ions in the center of mass energy from 0 to 51.88 eV have been measured by means of the…”
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Probing nuclear properties by resonant atomic collisions between electrons and ions
Published in Physica scripta (01-09-2013)“…The utilization of the resonant atomic electron-ion collision process of dielectronic recombination (DR) as a tool to probe nuclear properties via isotope…”
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