The photon-ion merged-beams experiment PIPE at PETRA III—The first five years

Stefan Schippers, Ticia Buhr, Alexander Borovik, Kristof Holste, Alexander Perry-Sassmannshausen, Karolin Mertens, Simon Reinwardt, Michael Martins, Stephan Klumpp, Kaja Schubert, Sadia Bari, Randolf Beerwerth, Stephan Fritzsche, Sandor Ricz, Jonas Hellhund, Alfred Müller

Research output: Article

2 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)11-20
Number of pages10
JournalX-Ray Spectrometry
Issue number1
Publication statusPublished - jan. 1 2020

ASJC Scopus subject areas

  • Spectroscopy

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    Schippers, S., Buhr, T., Borovik, A., Holste, K., Perry-Sassmannshausen, A., Mertens, K., Reinwardt, S., Martins, M., Klumpp, S., Schubert, K., Bari, S., Beerwerth, R., Fritzsche, S., Ricz, S., Hellhund, J., & Müller, A. (2020). The photon-ion merged-beams experiment PIPE at PETRA III—The first five years. X-Ray Spectrometry, 49(1), 11-20.