Experimental and theoretical approaches for determining the K-shell fluorescence yield of carbon

Philipp Hönicke, Rainer Unterumsberger, Nils Wauschkuhn, Markus Krämer, Burkhard Beckhoff, Paul Indelicato, Jorge Sampaio, José Pires Marques, Mauro Guerra, Fernando Parente, José Paulo Santos

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The knowledge of atomic fundamental parameters, such as the fluorescence yields with low uncertainties, is of decisive importance in elemental quantification involving X-ray fluorescence analysis techniques. However, especially for the low-Z elements, the available data in the literature is either of poor quality, of unknown or very large uncertainty, or both. For this reason, the K-shell fluorescence yield of carbon was determined in the PTB laboratory at the synchrotron radiation facility BESSY II. In addition, theoretical calculations of the same parameter were performed using the multiconfiguration Dirac–Fock method, including relativistic and quantum electrodynamics (QED) corrections. Both values obtained in this work are compared to the corresponding available published data.

Original languageEnglish
Article number110501
Number of pages7
JournalRadiation Physics and Chemistry
Publication statusPublished - Jan 2023


  • Atomic fundamental parameters
  • Fluorescence Yield
  • X-ray fluorescence spectroscopy


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