%0 Journal Article
%A Laksman, Joakim
%A Dietrich, Florian
%A Liu, Jia
%A Maltezopoulos, Theophilos
%A Planas, Marc
%A Freund, Wolfgang
%A Gautam, Randeer Pratap
%A Kujala, Naresh
%A Francoual, Sonia
%A Gruenert, Jan
%T Development of a photoelectron spectrometer for hard x-ray photon diagnostics
%J Review of scientific instruments
%V 93
%N 11
%@ 0034-6748
%C [S.l.]
%I American Institute of Physics
%M PUBDB-2022-06697
%P 115111
%D 2022
%X The development and characterization of an angle-resolved photoelectron spectrometer, based on the electron time-of-flight concept, for hard x-ray photon diagnostics at the European Free-Electron Laser, are described. The instrument is meant to provide users and operators with pulse-resolved, non-invasive spectral distribution diagnostics, which in the hard x-ray regime is a challenge due to the poor cross-section and high kinetic energy of photoelectrons for the available target gases. We report on the performances of this instrument as obtained using hard x-rays at the PETRA III synchrotron at DESY in multibunch mode. Results are compared with electron trajectory simulations. We demonstrate a resolving power of 10 eV at incident photon energies up to at least 20 keV.
%F PUB:(DE-HGF)16
%9 Journal Article
%$ 36461550
%U <Go to ISI:>//WOS:000891438900016
%R 10.1063/5.0097525
%U https://bib-pubdb1.desy.de/record/485542