Figure 4
(a) Photon energy resolution (ΔE) as a function of photon energy for the three gratings, measured with a vertical exit slit opening of 4 µm (400 l mm−1: red squares; 600 l mm−1: blue circles; 1000 l mm−1: black triangles). (b) Photon flux at ES-2 from the 400 l mm−1 grating as a function of vertical exit slit opening for four photon energies. (c) Photon energy resolution (ΔE) as a function of vertical exit slit opening for the three gratings at 62.8 eV (He, dashed line), 244.4 eV (Ar, dotted line) and 400.8 eV. (N2, solid line). |