Malzer, WolfgangGrötzsch, DanielGnewkow, RichardSchlesiger, ChristopherKowalewski, FabianVan Kuiken, BenjaminDeBeer, SerenaKanngießer, Birgit2020-03-122020-03-122018-11-150034-6748https://depositonce.tu-berlin.de/handle/11303/10923http://dx.doi.org/10.14279/depositonce-9816We have built a laboratory spectrometer for X-ray emission spectroscopy. The instrument is employed in catalysis research. The key component is a von Hamos full cylinder optic with Highly Annealed Pyrolytic Graphite (HAPG) as a dispersive element. With this very efficient optic, the spectrometer subtends an effective solid angle of detection of around 1 msr, allowing for the analysis of dilute samples. The resolving power of the spectrometer is approximately E/ΔE = 4000, with an energy range of ∼2.3 keV–10 keV. The instrument and its characteristics are described herein. Further, a comparison with a prototype spectrometer, based on the same principle, shows the substantial improvement in the spectral resolution and energy range for the present setup. The paper concludes with a discussion of sample handling. A compilation of HAPG fundamentals and related publications are given in a brief Appendix.en530 PhysikX-ray emission spectroscopyhighly annealed pyrolytic graphiteHAPGArticle1089-7623