TY  - JOUR
AU  - Laksman, Joakim
AU  - Dietrich, Florian
AU  - Liu, Jia
AU  - Maltezopoulos, Theophilos
AU  - Planas, Marc
AU  - Freund, Wolfgang
AU  - Gautam, Randeer Pratap
AU  - Kujala, Naresh
AU  - Francoual, Sonia
AU  - Gruenert, Jan
TI  - Development of a photoelectron spectrometer for hard x-ray photon diagnostics
JO  - Review of scientific instruments
VL  - 93
IS  - 11
SN  - 0034-6748
CY  - [S.l.]
PB  - American Institute of Physics
M1  - PUBDB-2022-06697
SP  - 115111
PY  - 2022
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 36461550
UR  - <Go to ISI:>//WOS:000891438900016
DO  - DOI:10.1063/5.0097525
UR  - https://bib-pubdb1.desy.de/record/485542
ER  -