activity
20182025
most citedNear L-edge photoionization of triply charged iron ions

32 citations · 164 across the 11 of their papers we have counts for

collaborators

11 papers

physics.atom-ph2025

Double to tenfold M-shell photoionization of singly charged lanthanum ions

M. Looshorn, B. M. Döhring, P. -M. Hillenbrand +9

Using the photon-ion merged-beams technique at the PETRA\,III synchrotron light source, we have measured cross sections for double and up to tenfold photoionization of La ion…

physics.atom-ph2025★ 9 cited

Double--hole resonances in single photoionization of He-like B ions

A. Müller, P. -M. Hillenbrand, S. -X. Wang +8

Within a joint experimental and theoretical research project, single photoionization of He-like B ions was investigated in the energy range from approximately 250 to 1200~eV…

physics.atom-ph2023★ 8 cited

Vibrationally Resolved Inner-Shell Photoexcitation of the Molecular Anion C

S. Schippers, P. -M. Hillenbrand, A. Perry-Sassmannshausen +6

Carbon core-hole excitation of the molecular anion C has been experimentally studied at high resolution by employing the photon-ion merged-beams technique at a synchrotr…

physics.atom-ph2022★ 3 cited

Multiple Photodetachment of Oxygen Anions via K-Shell Excitation and Ionization: Direct Double-Detachment Processes and Subsequent Deexcitation Cascades

S. Schippers, A. Hamann, A. Perry-Sassmannshausen +6

Experimental cross sections for m-fold photodetachment (m=2-5) of oxygen anions via K-shell excitation and ionization were measured in the photon-energy range of 525-1500 eV using…

physics.atom-ph2022★ 6 cited

Near K-Edge Photoionization and Photoabsorption of Singly, Doubly, and Triply Charged Silicon Ions

S. Schippers, S. Stock, T. Buhr +5

Experimental and theoretical results are presented for double, triple, and quadruple photoionization of Si and Si ions and for double photoionization of Si ions b…

physics.atom-ph2021★ 5 cited

Multiple photodetachment of silicon anions via K-shell excitation and ionization

A. Perry-Sassmannshausen, T. Buhr, M. Martins +5

Experimental cross sections for -fold photodetachment () of silicon anions via -shell excitation and ionization were measured in the photon-energy range of 1830-1900 e…

physics.atom-ph2020★ 25 cited

Near L-Edge Single and Multiple Photoionization of Doubly Charged Iron Ions

Stefan Schippers, Randolf Beerwerth, Sadia Bari +11

Using the photon-ion merged-beams technique at a synchrotron light source, we have measured relative cross sections for single and up to five-fold photoionization of Fe ions…

physics.atom-ph2019★ 31 cited

Multiple photodetachment of carbon anions via single and double core-hole creation

A. Perry-Sassmannshausen, T. Buhr, A. Borovik +8

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 employing the photon-ion me…

physics.atom-ph2019★ 32 cited

Near L-edge photoionization of triply charged iron ions

Randolf Beerwerth, Ticia Buhr, Alexander Perry-Saßmannshausen +12

Relative cross sections for -fold photoionization () of Fe by single photon absorption were measured employing the photon-ion merged-beams setup PIPE at the…

physics.atom-ph2018★ 26 cited

The photon-ion merged-beams experiment PIPE at PETRAIII - The first five years

S. Schippers, T. Buhr, A. Borovik +13

The Photon-Ion Spectrometer at PETRA III - in short, PIPE - is a permanently installed user facility at the "Variable Polarization XUV Beamline" P04 of the synchrotron light source…

physics.atom-ph2018★ 19 cited

Near--K-edge double and triple detachment of the F- negative ion: observation of direct two-electron ejection by a single photon

A. Müller, A. Borovik, S. Bari +9

Double and triple detachment of the F-(1s2 2s2 2p6) negative ion by a single photon have been investigated in the photon energy range 660 to 1000 eV. The experimental data provide…