Figure 10
Point spread function (PSF) of the long pulse at the focal plane, as simulated by WISEr in the longitudinal scattering configuration. The SNR between the peak and the value at 480 µm from the optical axis (blue dot, where the short radiation pulse is centred) is about 2.8 × 108. Sagittal scattering is lower by about a factor of 57 as compared with longitudinal scattering, so that the ratio between the long pulse peak intensity and its sagittal scattering contribution 480 µm away from the optical axis, where the short pulse is located, is about 1.6 × 1010. |