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

Abstract

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 PETRA III operated by DESY in Hamburg, Germany. The careful design of the PIPE ion-optics in combination with the record-high photon flux at P04 has lead to a breakthrough in experimental studies of photon interactions with ionized small quantum systems. This short review provides an overview over the published scientific results from photon-ion merged-beams experiments at PIPE that were obtained since the start of P04 operations in 2013. The topics covered comprise photoionization of ions of astrophysical relevance, quantitative studies of multi-electron processes upon inner-shell photoexcitation and photoionization of negative and positive atomic ions, precision spectroscopy of photoionization resonances, photoionization and photofragmentation of molecular ions and of endohedral fullerene ions.

arXiv comment10 pages, 9 figures

References in corpus (10)

• Absolute cross sections for photoionization of Xe${}^{q+}$ ions (1 $\le$ q $\le$ 5) at the 3d ionization threshold
• Photoionization of ions with synchrotron radiation: From ions in space to atoms in cages
• Near L-Edge Single and Multiple Photoionization of Singly Charged Iron Ions
• Photoionization of metastable heliumlike C4+(1s 2s 3S1) ions: Precision study of intermediate doubly excited states
• Two-particle interference of electron pairs on a molecular level
• Prominent role of multi-electron processes in K-shell double and triple photodetachment of oxygen anions
• Near-K-edge single, double, and triple photoionization of C+ ions
• A practical theoretical formalism for atomic multielectron processes: direct multiple ionization by a single Auger decay or by impact of a single electron or photon
• Near--K-edge double and triple detachment of the F- negative ion: observation of direct two-electron ejection by a single photon
• Stepwise contraction of the nf Rydberg shells in the 3d photoionization of multiply-charged xenon ions

Cited by in corpus (9)

• Near L-Edge Single and Multiple Photoionization of Doubly Charged Iron Ions
• Photoionization of astrophysically relevant atomic ions at PIPE
• Double-$K$-hole resonances in single photoionization of He-like B${}^{3+}$ ions
• Multiple photodetachment of atomic anions via single and double core-hole creation
• Vibrationally Resolved Inner-Shell Photoexcitation of the Molecular Anion C${}_2^{-}$
• Near K-Edge Photoionization and Photoabsorption of Singly, Doubly, and Triply Charged Silicon Ions
• Multiple photodetachment of silicon anions via K-shell excitation and ionization
• Multiple Photodetachment of Oxygen Anions via K-Shell Excitation and Ionization: Direct Double-Detachment Processes and Subsequent Deexcitation Cascades
• Highly correlated electronic bounding and spin effect: confirmation of an autodetaching state of O${}^{-}$