Fig. 4
From: Symmetry breakdown of electron emission in extreme ultraviolet photoionization of argon

Geometry of spectrometer setup. Drawing of the spectrometer depicting the spectrometer plane as well as the outer vacuum flanges for illustration of the chosen geometry at the LDM beamline at FERMI. The rotation of the spectrometer setup by 38.2° with respect to the dipole plane, or 51.8° with respect to the light propagation, is indicated and can be compared to the geometry shown in Fig. 1