Total flux emitted in the central cone by the 2.1 m long revolver undulator in the first (solid line) and third harmonic (dashed line) when using the 3 cm period device and emitted in the first harmonic (dotted-dashed line) by the 2.7 cm device. The current in the storage ring is 150 mA.
Log (base 10) of the number of rays as a function of time and vertical angle when accepting the full horizontal fan (see text).
Log (base 10) of number of rays as a function of time and vertical angle when accepting 50 μrad horizontally.
SD of the vertical size of the electron distribution (○) and its convolution with the photon beam (△: central cone; ×: SH late pulse; □: SH early pulse) as a function of the longitudinal distance. Zero meter corresponds to the center of the undulator.
Log (base 10) of the number of rays as a function of time and vertical position at 0.76 m downstream from the center of the undulator; i.e., where the radiation has its vertical waist.
Optical layout of the SPXIM beamline.
Energy resolution of a flat Si⟨220⟩ crystal followed by the sagittally bent crystal (red line); two flats (green circles). Right axis: (for trace labeled pPol2) p reflectivity of two flat ⟨220⟩ Si with collimated light.
Flux density (scale in units of photons/s/μm2) at the slit plane when using the Si⟨220⟩ crystals. The caption above the figure gives the total flux (in units of photons/s) as well as the standard deviations of the beam size along the horizontal and vertical directions.
Log (base 10) of the intensity at the sample position as a function of time and vertical angle. Upper trace (centered around 0 ps): With fully opened vertical slit; lower trace (shifted by −70 ps to make it visible in the figure) after a 25 μm slit.
Flux density (scale in units of photons/s/μm2) at the sample position at the energy resolution of the Si⟨220⟩ DCM. The caption above the figure as in Fig. 8 .
Position of the optical elements relative to the straight section center.
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